ThunderCats is an Japanese-American animated television series that was produced by Rankin/Bass Productions debuting in 1985, based on the characters created by Tobin "Ted" Wolf. 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. Season 1 of the show was completed in 1983 but aired two years later. A TV movie, ThunderCats – HO!, followed in 1986. Season 2 was aired in three seasons, following a new format of twenty episodes per batch, starting with a five-part story.
Season 1 (1985)[]
- Exodus
- An Unholy Alliance
- Berbills
- The Slaves of Castle Plun-darr
- Pumm-ra
- The Terror of Hammerhand
- Trouble with Time
- The Tower of Traps
- The Garden of Delights
- Mandora - The Evil Chaser
- The Ghost Warrior
- The Doomgaze
- Lord of the Snows
- The Spaceship Beneath the Sands
- The Time Capsule
- The Fireballs on Plun-Darr
- All That Glitters
- Spitting Image
- Mongor
- Return to Thundera
- Dr. Dometone
- The Astral Prison
- The Crystal Queen
- Safari Joe
- Snarf Takes Up the Challenge
- Sixth Sense
- The Thunder-Cutter
- The Wolfrat
- Feliner - Episode 1
- Feliner - Episode 2
- Mandora and the Pirates
- Return of the Driller
- Dimension Doom
- Queen of 8 Legs
- Sword in a Hole
- The Evil Harp of Charr-Nin
- Lion-O's Annointment Episode 1: The Trial of Strength
- The Demolisher
- Monkian's Bargain
- Tight Squeeze
- The Microts
- Lion-O's Annointment Episode 2: The Trial of Speed
- The Rock Giant
- Jackalman's Rebellion
- Turmagar the Tuska
- Lion-O's Annointment Episode 3: The Trial of Cunning
- The Mumm-Ra Berbil
- Mechanical Plague
- Trapped
- Lion-O's Annointment Episode 4: The Trial of Mind Power
- Excalibur
- Secret of the Ice King
- Good and Ugly
- The Transfer
- Divide and Conquer
- Dream Master
- Out of Sight
- The Mountain
- The Superpower Potion
- Eye of the Beholder
- Lion-O's Annointment Episode 5: The Trial of Evil
- The Trouble with Thunderkittens
- Mumm-Rana
- The Shifter
- Fond Memories
Season 2 (1986-1989)[]
- ThunderCats HO! (Part 1)
- ThunderCats HO! (Part 2)
- ThunderCats HO! (Part 3)
- ThunderCats HO! (Part 4)
- ThunderCats HO! (Part 5)
- Mumm-Ra Lives! Episode 1
- Mumm-Ra Lives! Episode 2
- Mumm-Ra Lives! Episode 3
- Mumm-Ra Lives! Episode 4
- Mumm-Ra Lives! Episode 5
- Catfight
- Psych Out
- The Mask of Gorgon
- The Mad Bubbler
- Together We Stand
- Ravage Island
- Time Switch
- The Sound Stones
- Day of the Eclipse
- Sideswipe
- Mumm-Rana's Belt
- Hachiman's Honor
- Runaways
- Hair of the Dog
- Vultureman's Revenge
- ThunderCubs Episode 1
- ThunderCubs Episode 2
- ThunderCubs Episode 3
- ThunderCubs Episode 4
- ThunderCubs Episode 5
- Totem of Dera
- Chain of Loyalty
- Crystal Canyon
- The Telephathy Beam
- Exile Isle
- Key to Thundera
- Return of the ThunderCubs
- The Formula
- The Locket of Lies
- Braclet of Power
- The Wild Workout
- The Thunderscope
- The Jade Dragon
- The Circus Train
- The Last Day
- Return of Thundera Episode 1
- Return of Thundera Episode 2
- Return of Thundera Episode 3
- Return of Thundera Episode 4
- Return of Thundera Episode 5
- Leah
- Frogman
- The Heritage
- Screwloose
- Malcar
- Helpless Laughter
- Cracker's Revenge
- The Mossland Monster
- Ma-Mutt's Confusion
- Shadowmaster
- Swan Song
- Touch of Amortus
- The Zaxx Factor
- Well of Doubt
- The Book of Omens