ThunderCats (1985 TV series)

This article is about the original television series. For the 2011 television series reboot, see ThunderCats (2011 TV series). For other uses, see ThunderCats.

ThunderCats logo
Genre Action/Adventure
Science fantasy
Created by Tobin "Ted" Wolf
Developed by Leonard Starr
Written by Leonard Starr
Stephen Perry
Directed by Katsuhito Akiyama
Arthur Rankin, Jr.
Jules Bass
Voices of Larry Kenney
Earle Hyman
Earl Hammond
Lynne Lipton
Bob McFadden
Peter Newman
Doug Preis
Gerrianne Raphael
Opening theme Thundercats by Heart
Composer(s) Bernard Hoffer
Country of origin United States
No. of episodes 130 (list of episodes)
Executive producer(s) Arthur Rankin, Jr.
Jules Bass
Lee Dannacher
Masaki Ihzuka
Producer(s) Tony Giovanniello
Matthew Malach
Connie Long
Heather Winters
Running time 22 minutes
Production company(s) Rankin/Bass Animated Entertainment
Pacific Animation Corporation
(Japanese Animation Studio)
Leisure Concepts[1][2]
Distributor Telepictures Corporation (1985–1986)
Lorimar-Telepictures (1986–1989)
Warner Bros. Television Distribution (1989–present)
Original network Syndication
Audio format Mono
Original release January 23, 1985 (1985-01-23) – September 29, 1989 (1989-09-29)

ThunderCats is an American animated television series that was produced by Rankin-Bass Animated Entertainment and Leisure Concepts[1] debuting in 1985, based on the characters created by Tobin "Ted" Wolf.[3] The series, for which Leonard Starr was the head writer, follows the adventures of a group of catlike humanoid aliens. The animation for the episodes was provided by the Japanese studio Pacific Animation Corporation, later acquired in 1989 to form Walt Disney Animation Japan. Season 1 of the show aired in 1985 (65 episodes), followed by a TV movie entitled ThunderCats – HO! in 1986. Seasons 2, 3, and 4 followed a new format of twenty episodes each, starting with a five-part story.

The series was originally distributed by Rankin-Bass Productions' then-parent company Telepictures Corporation, which would later merge with Lorimar Productions in 1986.[4] In 1989, Lorimar-Telepictures was purchased by and folded into Warner Bros., whose television syndication arm would eventually assume distribution of the show; Warner Bros. have had the rights to the series (and all Lorimar-Telepictures programming) from that point on. Leisure Concepts which helped co-develop[1][2] the show acted as a licensing agent for the series.[1][5][6][7]

There were also several comic book series produced: Marvel Comics' version (currently owned by Warner Bros. rival Disney), 1984 to 1988; and five series by Wildstorm, an imprint of DC Comics (Warner Bros.' corporate sibling), beginning in 2003. Items of clothing featuring the ThunderCats logo and DVD boxsets of the original series have enjoyed a resurgence in recent years as nostalgia for the former children's favorite has grown.

It was announced on June 7, 2007, that Aurelio Jaro is making a CGI-animated feature film of ThunderCats, based on a script written by Paul Sopocy. In October 2007, Variety magazine revealed that Jerry O'Flaherty, veteran video game art director, had signed on to direct. The film is being produced by Spring Creek Productions. It was originally set for a summer 2010 release,[8] but it has since been reported that the movie is on hold.[9] Concept art for the film has also been leaked online.[10]


The ThunderCat heroes, from left: Tygra, Snarf, Panthro, Lion-O, WilyKit, Cheetara, and WilyKat.

ThunderCats follows the adventures of the eponymous team of heroes, catlike humanoid aliens on a planet called Third Earth. The series plot begins with the dying planet Thundera [thun•DAIR•uh] meeting its end, forcing the ThunderCats (a sort of Thunderean nobility) to flee their homeworld. The fleet is attacked by the Thundereans's enemies, the Mutants of Plun-Darr, who destroy most of the starships in the "ThunderFleet," but spare the flagship hoping to capture the legendary mystic Sword of Omens they believe is on board. The sword holds the Eye of Thundera, the source of the ThunderCats's power, which is embedded in the hilt. Though the Mutants damage the flagship, the power of the Eye drives them back. The damage to the ship means the journey to their original destination is not possible, instead having to journey to "Third Earth;" which will take much longer than they had anticipated. The eldest of the ThunderCats, Jaga, volunteers to pilot the ship while the others sleep in capsules; however, he dies of old age in the process, but not before ensuring they will reach their destination safely. The flagship contains the young Lord of the ThunderCats, Lion-O, as well as the ThunderCats Cheetara, Panthro, Tygra, WilyKit and WilyKat, and Snarf.

When the ThunderCats awake from their suspended animation on Third Earth after ten "galacto-years," Lion-O discovers that his suspension capsule has slowed, rather than stopped, his aging, and he has now become essentially a child in the body of an adult. (He has thus grown in size without actually growing up, and has missed out on the first-hand life experiences which confer maturity.) Together, the ThunderCats and the friendly natives of Third Earth construct the "Cat's Lair," their new home and headquarters, but before long, the Mutants have tracked them down to Third Earth. The intrusion of these two alien races upon the world does not go unnoticed, however, as a demonic, mummified sorcerer calling himself Mumm-Ra recruits the Mutants to aid him in his campaign to acquire the Eye of Thundera and destroy the ThunderCats so that his evil may continue to hold sway over Third Earth.[11]


Season 1

The basic plot above holds strong for the first season of the show, and served as the basis for a vast array of stories that freely mixed elements of science fiction and fantasy into a traditional good-versus-evil tale that steadily introduced more and more recurring allies and villains into the world of the ThunderCats. Futuristic technology is just as central to the series as magic and myth, but even in the midst of all this action, the series never underemphasizes the importance of moral values in solving problems. Each episode would normally include a short dénouement, featuring the characters recuperating after the events of the story and taking the time to single out a personal value or wholesome approach that helped save the day, or could have done so if they had not seen it.

The first half of Season 1 featured a gentle continuity, with early episodes following on from one another and establishing recurring concepts, although this became less common as the season transitioned into its second half, which comprised mostly incidental one-shot adventures. Tying the second half of season one together was the overarching five-part adventure written by series head writer Leonard Starr, "Lion-O's Annointment," in which an unarmed Lion-O faced off against first each of the other ThunderCats, and then Mumm-Ra, so he could truly earn his title as Lord of the ThunderCats. The five parts were:

  1. "Day One: The Trial Of Strength" – Lion-O had to out-do Panthro in a strength contest.
  2. "Day Two: The Trial Of Speed" – Lion-O had to beat Cheetara in a race.
  3. "Day Three: The Trial Of Cunning" – Lion-O had to outwit both of the "ThunderKittens," WilyKat and WilyKit, in an underground location.
  4. "Day Four: The Trial Of Mind-Power" – Lion-O was pitted against Tygra in a mind-based challenge.
  5. "Last Day: The Trial Of Evil" – Lion-O had to defeat Mumm-Ra. In his "Trial Of Evil," Lion-O discovered that Mumm-Ra was highly dependent on the sarcophagus inside which he had been mummified.

On all four days except the last, the Mutants tried to interfere with Lion-O's trials so that they could force the ThunderCats to remain leaderless. The other ThunderCats were each then forced to involve themselves in the conflict specifically to foil the Mutants's interferences—all while trying to avoid assisting Lion-O in his anointment trials.

Although intended to be viewed consecutively (as the adventures depicted occurred one day after the other), the five parts of the mini-series were erroneously aired (and released on DVD) with multiple other episodes between each installment.

ThunderCats – Ho!

The 1986 TV movie "ThunderCats - Ho!" featured the first major shake-up to the status quo of the series, introducing three new Thundereans (whom Lion-O later anointed as ThunderCats) who had also survived the destruction of Thundera. A massive cast of returning heroes and villains were incorporated into the story and concluded with the apparent destruction of Mumm-Ra. Leonard Starr wrote the story for this TV movie.

Season 2

When the series returned in 1986, however, it was revealed that the evil wizard Mumm-Ra had survived. "Mumm-Ra Lives!" set the pattern for the following three seasons, which each began with a five-part mini-series, again written by Leonard Starr, that established the new characters and concepts that would go on to influence the rest of the season. In the case of "Mumm-Ra Lives!", these concepts included the debut of the villainous Lunataks, who became a third faction that existed for the rest of the series, and the new team of ThunderCats from ThunderCats - Ho! being given their own headquarters, vehicles and so forth.

Season 3

The 1988 season began with the Peter Lawrence-scripted "ThunderCubs," which, though named for its plot about the ThunderCats being transformed into children, was principally about Mumm-Ra reconstructing Thundera in order to retrieve both the weapon that had originally destroyed it (the Sword of Plun-Darr) and the legendary Treasure of Thundera. In the course of the adventure, the treasure—containing the Book of Omens, a tome holding all the secrets of the ThunderCats, and many other mystical items—was scattered across the New Thundera, ushering in a new concept for the series: a season with an actual story arc. Continuity between episodes became tighter as the ThunderCats, Mutants, Lunataks and Mumm-Ra alternated their adventures between Third Earth and New Thundera, searching for the treasure and exploiting its powers. The season also featured the running theme of the Ancient Spirits of Evil having to take a more active hand in pushing Mumm-Ra into action, culminating in another unique feature of the season—an actual finale episode, "The Last Day," in which the Ancient Spirits of Evil give Mumm-Ra one last chance to destroy the ThunderCats by sunset. Besides demonstrating their threat by making Ma-Mutt disappear, the Ancient Spirits of Evil stated that Mumm-Ra's failure will also have the Mutants and the Lunataks removed from Third Earth as well. Ultimately, Mumm-Ra failed and the Ancient Spirits of Evil exiled him to the farthest corner of the Universe.

Season 4

In the opening miniseries, Peter Lawrence's "Return to Thundera!", the ThunderCats returned to New Thundera to rebuild their society, but before departing, they destroyed Mumm-Ra's pyramid. This enraged the Ancient Spirits of Evil to the point that they brought Mumm-Ra back and installed him within a new pyramid on New Thundera. The season proved to be quite divorced from what had gone before, with adventures consigned almost entirely to New Thundera, and most villainous opposition coming from either Mumm-Ra or assorted new villains. The Mutants, Lunataks, and Captain Cracker all returned for one episode each, however. In the series finale, several conclusions are reached:



Despite its large cast of characters, ThunderCats featured a rather small circle of voice actors, with only six actors providing voices for the entire first season. Every actor provided multiple voices, although the distinctive baritone of Earle Hyman (Panthro) left the actor providing only very occasional guest voices in comparison with his fellow performers. In particular, as the first season's only female actor, Lynne Lipton (Cheetara and WilyKit) provided voices for every single female character that appeared in the season. Above all others, however, actor Bob McFadden would most regularly provide the voices of guest characters, with his two diametrically-opposed main roles: the timid, high-pitched Snarf and the rumbling, sibilant Slithe.

Despite introducing a large number of new regular characters, the show's second season brought in only two new actors. Gerrianne Raphael provided the voice of Pumyra, and was able to provide Lynne Lipton with some relief by adding new female voices.

Voice actor Regular Heroes Regular Villains Recurring characters
Larry Kenney Lion-O Jackalman Snarf Eggbert
Earle Hyman Panthro Red-Eye
Ancient Spirits of Evil
Earl Hammond Jaga Mumm-Ra
Snarf Oswald
RoBear Berbils
Snowman of Hook Mountain
Captain Cracker
Peter Newman Tygra
Monkian Hachiman
Lynne Lipton Cheetara
Luna Willa
Mandora the Evil Chaser
Bob McFadden Snarf
Grune the Destroyer
Captain Shiner
Gerrianne Raphael Pumyra Chilla Jagara
Doug Preis Lynx-O Alluro N/A

Action figures, statues and other merchandise

LJN produced the ThunderCats action figures from 1984–1987.[12] The ThunderCats line was based on the animated series which was actually created in 1983. Due to difficulties, it would not air until 1985. Each figure had an action feature of some sort, and the line also included a unique "laser" light-up feature that interacted between the Cats' Lair playset, some figures, and some accessories. Lion-O's eyes and Mumm-Ra's eyes would illuminate when a special battery-powered key ring that came with the figure was pressed into a slot in their backs. PVC companions were packaged with some figures in 1986, including WilyKat with Tygra, WilyKit with Cheetara, Snarf with Lion-O, and Ma-Mutt with Mumm-Ra. The PVC companion figures were also produced as full size articulated figures.

LJN did produce a few variant figures including the young Tygra version and the silver rat-eye daggers for Rataro. There are also a few slight color variations of Lion-O, such as red and orange-haired versions. The third series of figures from 1987 are harder to find along with the Tongue-A-Saurus and Astral Moat Monster. Driller and Stinger are the toughest figures to track down; Stinger's wings are very fragile, making it next to impossible to find a loose, complete figure.

An unproduced final series of figures would have included The Mad Bubbler, Red-Eye of the Lunataks, Ratilla, Cannon-Blaster and Quick-Jaws from the Bezerkers as well as the Feliner, Thunderstrike and Luna Tacker. Photos of these were featured in the 1987 LJN catalog.

In 1987, Elite Systems released the game ThunderCats: The Lost Eye of Thundera, for Commodore64/128 and Sinclair ZX Spectrum personal computer systems. Many years later, Cartoon Network's official website featured a game that allowed visitors to play as Lion-O and rescue fellow ThunderCats while venturing into Mumm-Ra's tomb (this game, titled, "ThunderCats: Tomb of Mumm-Raa," can be found on an archived Toonami database).

Other ThunderCats merchandise of the 1980s included, among other items, a board game, TV tray table, an electronic racing set, tin lunch box and apparel. A retro spurt occurred in the mid-1990s and 2000s (decade) that began with the familiar 1980s ThunderCats emblem on T-shirts and has since grown to include new T-shirt designs and various other ThunderCats-themed apparel such as hats and belt buckles.

Plus a tan backpack with the ThunderCats on it.

In May 2009, Warner Brothers gave Hard Hero the rights to produce a line of collectible statues based on the ThunderCats characters.[13]

In June 2010, Bandai announced that new toylines will be released, based on both the classic and the 2011 series.[14]

In July 2010, Warner Bros. announced that Icon Heroes, a company specializing in collectible pop memorabilia, released their new line of classic ThunderCats statues and vehicles.[15]

Mezco Toyz announced in February 2011 that they acquired the ThunderCats license to produce large scale rotocast figures based on the 1980s animated series. Lion-O was the first announced figure and is expected to be released sometime in July.

Jerry Macaluso, owner of Pop Culture Shock, collectible statue company, announced in March 2010 that he had acquired his "dream license". The company went on to produce premium format ThunderCats statues (1:4 scale, over 30 inches) of Lion-O and Mumm-Ra. Prototypes of Cheetara and Tygra were developed and displayed online and at San Diego Comic Con respectively, but didn't reach minimum pre-order thresholds. The prototypes were donated to the ThunderCats Museum in 2014.[16]

Comic books

Main article: ThunderCats (comics)

There were also several comic book series produced. A ThunderCats comic book series based on the animated series was originally published by Marvel Comics through its Star Comics imprint in 1985, lasting for 3 years and 24 issues.[17] During this time, a new series was published by Marvel UK consisting of 129 issues and was also published for three years.[18] Beginning in 2002 ThunderCats titles were published by Wildstorm Productions, an imprint of DC Comics (Warner Bros.' corporate sibling), and included 5 non-canon mini-series and several one-shots.[19]

Video games

Two video games based on the franchise exist: ThunderCats: The Lost Eye of Thundera, a 1987 side-scrolling video game; and ThunderCats, a 2011 Nintendo DS game based on the show's revival.


In January 2009, IGN named ThunderCats as the 49th-best show in the Top 100 Best Animated TV Shows.[20]


In 1985, ThunderCats – HO The Movie was produced. The movie was released on VHS in the UK but not in the USA. It was later edited into the five episodes which ultimately led to season 2 (even though season 2 never aired in the UK).

In 2008–09, Warner Bros. was in the process of creating a CGI animated film based on ThunderCats. It was rumored to be an original story expanding on the events of the first episode and the film's concept artwork (released in July 2009) contained the main character Lion-O and three locations. A two-minute test scene was filmed and presented to Warner Brothers, however the movie has been put on indefinite hold, perhaps due to the critical and commercial failure of the 2008 movie Speed Racer (another Warner Brothers CGI project).

2011 series

A new ThunderCats animated series produced by Warner Bros. Animation began airing on Cartoon Network from July 2011.[21] Animation production is being done by Japanese animation studio Studio 4°C, which provided animation for Warner Bros. films The Animatrix and Batman: Gotham Knight. Sam Register (Teen Titans, Ben 10) is the executive producer and is joined by Michael Jelenic (Wonder Woman, Batman: The Brave and the Bold) and Ethan Spaulding (Avatar: The Last Airbender) as the producers for the series.[22] The show will explain Lion-O's ascension to the Thunderean throne with a more original feel and darker style than the 1980s series. The new series makes it clear in the very beginning, however, that they are not adhering to the original story line. In the original series the Thunder Cats leave Thundera, as the last of their race, to eventually arrive on the 3rd earth. In the new series the very first line states that the Thundereans are already on the 3rd earth. As the first few episodes progress the new writers seem to use Thundera but it isn't clear if they are referring to a planet or kingdom.[23] Former Lion-O voice actor Larry Kenney returned to play the role Lion-O's father Claudus in the opening two-part episode of the new series.[24]

In January 2011, a promotional poster featuring re-imagined designs for Lion-O, Cheetara, Panthro, and Tygra as well as design for the Sword of Omens and vehicles were shown at the London Toy Fair.[25] Cartoon Network aired an 80-second trailer during the After Party Special of the "Hall of Game Awards" sports award show (on February 25, 2011), giving the viewers peeks at all the previously confirmed characters: as well as Jaga, Wilykit/Wilykat, and King Claudus. On 2 April 2011, Cartoon Network aired another 80-second trailer of the new series. The series began airing on Cartoon Network on July 29, 2011 with an hour-long premiere.[26] The new series of ThunderCats premiered in the UK on Cartoon Network on 10 September 2011.[27]

Despite an early positive response (with the animation in particular receiving heavy praise from critics), the series failed to make any real impact and viewing figures slowly declined after the first episode, with blame falling on a relatively dark and complicated storyline considering the show was aimed at 6-12 year olds. Merchandise struggled to sell, and as a result the show was cancelled after only one season.

DVD releases


Warner Home Video released the entire ThunderCats series in the US over a number of volumes in the following order:

DVD name Ep # Region 1 release date Region 2 release date Additional information
Season 1, Volume 1 33 August 9, 2005[28] January 15, 2007
  • "Feel the Magic, Hear the Roar: ThunderCats Fans Speak Out": an interview featurette in which Wil Wheaton (of Star Trek: The Next Generation) and other loyal fans give their memories and support to this animation classic
Season 1, Volume 2 32 August 9, 2005[29] August 13, 2007
  • ThunderCats Ho! The Making of a Pop Culture Phenomenon: Executive Producer Arthur Rankin Jr. Shares Secrets from the Show
Season 2, Volume 1 34 April 18, 2006[30] April 14, 2008
Season 2, Volume 2 31 November 28, 2006[31] June 2, 2008[32]
  • Features ThunderCats Ultimate Adventure Challenge on Disc 12
Season 1, Part 1 13 July 12, 2011
Season 2, Part 2 13 March 24, 2012

Complete Series

Warner Home Video have released the entire ThunderCats series in the UK in the following order:

DVD name Ep # Region 1 release date Region 2 release date Additional information
Season 1 65 TBA 18 February 2008[33]


Season 2 65 TBA 18 August 2008[34]


Season 1 & 2 130 TBA 3 November 2008[35]



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  2. 1 2 "Mike Germakian, a Father of the ThunderCats –". September 29, 2008. Retrieved August 18, 2016.
  3. "Those Thundercats just keep on coming back". Honolulu Observer. Archived from the original on December 1, 2006. Retrieved 2015-01-26.
  4. Boyer, Peter J. (1986-02-03). "Toy-Based TV: Effects on Children Debated". New York Times. Retrieved 2010-08-10.
  5. Lippman, John (August 16, 1999). "Creating the Craze for Pokemon: Licensing Agent Bet on U.S. Kids". The Wall Street Journal. Retrieved August 18, 2016.
  6. Millman, Nancy (July 29, 1986). "Burger King aims at kids' market in new campaign". Chicago Sun-Times. Retrieved August 18, 2016.
  7. Teresa, Salas (August 1, 1988). "Buyers, licensors: partners in profit; strong merchandising support considered vital to property's success. (toy industry) (Licensing Scope)". Playthings. Retrieved August 18, 2016.
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  10. "Concept Art For Warner Bros.' Thundercats". ThunderCats.Org.
  11. "Thundercats Season One Volume Two". IGN. 2008-05-13. Retrieved 2008-10-06.
  12. "Battle of the Fun Factories". Time. 1985-12-16. Retrieved 2010-03-03.
  13. "Hard Hero Statues".
  14. Roberts, Katie (4 June 2010). "Bandai signs Thundercats". ToyNews. Retrieved 1 November 2010.
  15. Icon Heroes ThunderCats statues
  16. "Pop Culture Shock ThunderCats statues". "ThunderCats.Org". Retrieved 2015-09-12.
  17. "ThunderCats Marvel Comics". Retrieved 2015-09-11.
  18. UK Marvel Comics at; Accessed Sept 11, 2015
  19. "ThunderCats revived by Wildstorm Comics". Retrieved 2015-09-11.
  20. "49, ThunderCats". IGN. 2009-01-23. Retrieved 2009-01-24.
  21. "ThunderCats 2011 series overview". Retrieved 2015-09-12.
  22. New Thundercats Cartoon Series Coming Next Year…HO-O-O! – Screen Rant
  23. "New 'Thundercats' Series Coming In 2011! First Image And Poster Arrive!",
  24. :: The Classic Show - cast | interviews | dvds | episode guides | character appearances | scripts | morals | dictionary | image gallery
  25. Woerner, Meredith (January 25, 2011). "First Look at the Anime-style Thundercats". io9. Gawker Media. Retrieved February 4, 2011.
  26. "ThunderCats – Free Online Videos and Downloads". Cartoon Network.
  27. "ThunderCats...". Retrieved 16 August 2011.
  28. "Thundercats – Season 1, Volume 1". Retrieved 2008-09-21.
  29. "Thundercats – Season 1, Volume 2". Retrieved 2008-09-21.
  30. "Thundercats – Season 2, Volume 1". Retrieved 2008-09-21.
  31. "Thundercats – Season 2, Volume 2". Retrieved 2008-09-21.
  32. "ThunderCats Season Two Part Two Release Date". HMV. May 5, 2008. Retrieved 2008-05-07.
  33. "Thundercats Complete Season 1 [DVD]". Retrieved 6 November 2011.
  34. "Thundercats – Complete Season 2 [DVD]". Retrieved 6 November 2011.
  35. "Thundercats – Complete Seasons 1 and 2 [DVD]". Retrieved 6 November 2011.
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