Season 4
(1989)
Cast
as Lion-O / Jackalman (voice)
as Tygra / WilyKat / Monkian (voice)
as Panthro (voice)
as Cheetara / WilyKit (voice)
as Mumm-Ra / Jaga / Vultureman (voice)
as Snarf / Slithe (voice)
as Pumyra (voice)
as Alluro (voice)
Episodes
Return to Thundera (1) 6.0
September 4, 1989
The Ancient Spirits of Evil give new life to Mumm-Ra and Ma-Mutt, send them to New Thundera, and build a new Pyramid fo…
Return to Thundera (2) 6.0
September 5, 1989
More and more earthquakes are ocurring because of the malfunctioning Gyroscope. Meanwhile Lion-O recieves a distress si…
Return to Thundera (3) 6.0
September 6, 1989
Lion-O, Panthro, and the Thunderkittens take the Whisker, a new flying vehicle, to the Churning Rocks to rescue the Thu…
Return to Thundera (4) 6.0
September 7, 1989
Mumm-Ra sends Ma-Mutt disguised as Mandora to free the Mutants from Capt. Bragg's circus train and sends Bragg and Crow…
Return to Thundera (5) 6.0
September 8, 1989
After another earthquake caused by Mumm-Ra ruins the new Cats Lair construction site, the Thundercats go to see Jaguara…
Leah 6.0
September 11, 1989
The Ancient Spirits of Evil bring the Mirror Wraith to Mumm-Ra, and he disguises it as a child's toy. Mumm-Ra then inte…
Frogman 6.0
September 12, 1989
Wily Kit and Kat are constructing a well for the New Cat's Lair on New Thundera. The Thundercats on New Thundera receiv…
The Heritage 6.0
September 13, 1989
Wily Kit and Kat, exploring New Thundera, stumble upon an Orb of Gold, and pick it up thinking that it is apart of thei…
Screwloose 6.0
September 14, 1989
Jaguara cannot work New Thundera’s Gyro on her own. The Thundercats order a robot to aid her in running the Gyro. Screw…
Malcar 6.0
September 15, 1989
Mumm-Ra summons Malcar, an ancient alchemist, to return from the dead. The alchemist returns old and weak, as he was wh…
Helpless Laughter 6.0
September 18, 1989
A convergence of the Moons of Plun-Darr causes a drought on Thundera. Panthro and Snarf go looking for water, then Ezuk…
Cracker's Revenge 6.0
September 19, 1989
Capt. Cracker and his mechanical parrot Polly land on Way-Out Back and free the Lunatacs and put Bragg and Crownan in o…
The Mossland Monster 6.0
September 20, 1989
Tygra, on a solo trip to New Thundera to meet the other Thundercats, decides to take a shortcut through a meteor shower…
Ma-Mutt's Confusion 6.0
September 21, 1989
Mumm-Ra has a new device, the Babylonian Barbarian Boiler, that he plans to use on Cats Lair. Ma-Mutt fools around too …
Shadowmaster 6.0
September 22, 1989
From the Shadow Realm, the Shadowmaster contacts the Ancient Spirits of Evil (ASOE), telling them of how he captured Li…
Swan Song 6.0
September 25, 1989
An Ecology Inspector (EI) comes to Thundera to inspect the new Cats Lair. His ship uses the SWAN system (Space Way Airb…
Touch of Amortus 6.0
September 26, 1989
Mumm-Ra orders Amortus, a being he banished to the Land of No Return centuries ago, to destroy Lynx-O. Amortus makes Ly…
The Zaxx Factor 6.0
September 27, 1989
Vultureman escapes from exile by hijacking a bookmobile. He finds a disk containing ancient history about two powerful …
Well of Doubt 6.0
September 28, 1989
The Thundercats use a new Tower signal to guide a Thunderian ship in; aboard are Baron Tass and Mr. Grubber, a devious …
The Book of Omens 6.0
September 29, 1989
New Thundera is being torn apart and the Thundercats must present certain artifacts at various dangerous locations that…