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A team of humanoid cats fight evil in their adopted home world.
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Series cast summary:
Bob McFadden Bob McFadden ...  Snarf / ... 125 episodes, 1985-1989
Larry Kenney Larry Kenney ...  Lion-O / ... 125 episodes, 1985-1989
Earl Hammond Earl Hammond ...  Mumm-Ra / ... 125 episodes, 1985-1989
Lynne Lipton Lynne Lipton ...  Cheetara / ... 125 episodes, 1985-1989
Earle Hyman ...  Panthro / ... 125 episodes, 1985-1989
Peter Newman Peter Newman ...  Tygra / ... 125 episodes, 1985-1989
Gerrianne Raphael Gerrianne Raphael ...  Pumyra / ... 60 episodes, 1987-1989
Doug Preis Doug Preis ...  Alluro 60 episodes, 1987-1989


The inhabitants of the planet Thundera evacuate just before it is destroyed. They were pursued by a band of mutants. All but one of their escape ships was destroyed. Only a small group of Thunderans (Thundercats) remained. With only half engine power, the group, which was led by Jaga, had to set a course for the nearest planet. Jaga commanded their ship while the other 7 were in their stasis tubes. Jaga died on their journey to Third Earth and their ship crashed there. Soon they made friends with various groups in the area and they designed a fortress. Mumm-Ra the centuries-old embodiment of evil, along with the mutants that destroyed the rest of the Thunderans are a constant threat. But Lion-O, the new leader of the Thundercats, with his weapon the "Sword of Omens" will help the Thundercats to have a standing chance. Written by D. Darnoc

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TV-Y7 | See all certifications »






Release Date:

23 January 1985 (USA) See more »

Also Known As:

Cosmocats See more »

Company Credits

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Technical Specs


| (130 episodes)

Sound Mix:



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Did You Know?


The cartoon is mentioned in a Kenny Craig sketch in Little Britain: Episode #2.3 (2004) which is the TV program Kenny Craig Matt Lucas watches. See more »


[repeated line]
Lion-O: Sword Of Omens, give me sight BEYOND sight.
See more »

Alternate Versions

When shown on BBC television all scenes showing Panthero using his nunchakus were cut. The BBFC also cut the nunchakus from the video releases. The DVD releases are uncut. See more »


Referenced in Futurama: Decision 3012 (2012) See more »


Music by Bernard Hoffer
Lyrics by Jules Bass
See more »

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User Reviews

Thunder, Thunder, Thunder, THUNDERCATS HO!
11 September 2003 | by Mr_GarakSee all my reviews

Another brilliant series to come out of the 80's though it kind of remind me of He-Man And The Masters Of The Universe at first, but quickly established itself as something differen't

The story is basically about a small group of Thunderians, who are Thundercats which is basically their equivilent of a royal family who have ot abandon their homeplanet of Thundera as the planet is destroying itself, led by Jaga the few reminaing Thunderian ships are attack by Mutants form the planet plundarr and are taken out with no trouble by the mutants ship, all except the flagship which they know is carrying the eye of Thundera, which is ebedded in the hilt of the mystic sword of omens.

Lion-O is the yound lord of the Thundercats who often receives advice from the ghost of Jaga and is keeper of the sword of omens, he has the look of a Lion like his name.

Cheetara is one only 2 females in the show at first, she can run at very fast speeds, but can only keep it up for about two miles, she has the look of a Cheeta hense her namesake.

Panthro is the engineer of the group who manages to build anything you can think of out of just about any ammount of scrap he can find, he resembles the look of a Panther.

Tygra the scientest who's bolowhip allows him to become invisible giving him an advantage in fights, Tygra also has the ability to trick people's minds (a bit like the jedi mind trick) he resemble a tiger.

Wiley Kitt a Thunderkitten who along with her brother Wileykatt is always getting into some kind of trouble.

Wiley Katt a thunderkitten like his sister Wiley Kitt and is always getting into trouble.

Snarf is Lion-O's trusted companion,keeper and friend, not sure what snarf is supposed to be only he is a feline like Thundercat not like the others who are part humanoids part cats.

Bengali was a blacksmith on Thundera before it was destroyed he was almost left on Thundera along with his companions Lynx-O and Pumyra, bengali resemble a Bengal Tiger.

Lynx-O lost his sight when flames caused by Thundera's destruction engulfed his eye's, but his other sense where hightend by the loss of his sight, he uses a brail board made by Panthro to hepl him with his duties in the Cats Lair and the Tower of Omens, he resembles a Lynx.

Pumyra the third female of the Thundercats, she resembles a Puma.

Ssslythe is the leader of the mutants who attacked the Thundercats, Ssslythe wishes only to possess the eye of Thundera, Ssslythe is a lizard type humanoid.

Monkien is a monkey type human and a part of the mutants.

Jackalman is a jackal typehumanoid, and is also a part of the mutants.

Vultureman is a vulture type humanoid, doesn't really like Ssslythe ordering him about most of the time but does obey him.

Mumm-Ra is the devil priest of third earth and is everliving as long as evil exists, Mumm-Ra is over a thousand year old and his body is decayed, even though Mumm-Ra's appearance is that of a weak frail old creature his magic is very powerful, Mumm-Ra serves the ancient spirits of evil who do not exist on the same plain of existance as Mumm-Ra does on third earth, but they do communicate with him via the four giant statues in the black pyramid where Mumm-Ra lives, the ancient spirits of evil grant Mumm-Ra the power to transform himself into Mumm-Ra the ever living, a more powerful, more hideous looking and stronger version of his normal self, Mumm-Ra the everliving's power is beyond question, and his voice was one of the most evil and best bad guy voices in cartoon history in my opinion.

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