There were a host of characters who appeared in the "Thundercats" animated show. While some were recurring characters, a few only appeared in a single episode. The following is a list of all characters who have appeared on the show.
Good Characters
Thundercats
New Thundercats
These three Thundercats first debuted in the TV Movie "Thundercats HO!" and became regular cast members from the second season onwards.
Non-Thundercat Thunderians
These characters, while belonging to the planet of Thundera, are not Thundercats.
- Jagara
- Torr
- Leah
- Royal Thunderian Guards
Other Snarfs
Other Snarfs who live on The Planet of Snarfs.
- Snarf Oswald
- Snarf Eggbert
Third Earth Native Groups
- Berbils
- Ro-Bear Bill
- Ro-Bear Belle
- Ro-Bear Bert
- Ro-Bear Bob
- Warrior Maidens
- Willa
- Nayda
- Wollos
- Bolkins
- Tabbuts
- Brutemen
- Cavemen
- Giants
- Giantors
- Micrits
- Moleman
- Trolls
- Tuskas
- Under-earthmen
Allies and friends of the Thundercats
- Captain Bragg & Crownan
- Char
- Dr. Dometone
- Hachiman
- Mandora
- Mumm-Rana
- Quick-Pick
- Screwloose
- Snowman of Hook Mountain & Snowmeow
- Sondora
- Terrator
- Turmagar the Tuska & Gomplin
- Unicorn Keepers
- Wizz-Ra
Evil Characters
Main Villains
Mutants
Lunataks
- Luna
- Amok
- Alluro
- Tug-Mug
- Chilla
- Red-Eye
Berserkers
- Hammerhand
- Cruncher
- Top-Spinner
- Ram-Bam
Other Villains
- Amortus
- Baron Tass & Mr. Gruber
- Boatman
- Burnout
- Captain Cracker & Polly
- Captain Shiner
- Charr-Nin
- Child of Gorgon
- Crabmen
- Demolisher & Dirge
- Driller
- Enflamer
- Feerits
- Frog Man
- Gargoyles
- Grune the Destroyer
- Kymera
- Mad Bubbler
- Malcar
- Molemaster
- Mongor
- Mudhogs
- Nemex
- Ninja
- Plun-Darian Warbot
- Plutar
- Pyron
- Queen Tartara
- Rhino
- Safari Joe & Mule
- Scrape
- See-Thru
- Shadowmaster
- Spidera
- Ta-She
- Technopede
- Trollogs
- Two-Time
- Vampire Mermaid
- Wolfrat
- Zaxx
Various Creatures
- Arietta Bird
- Astral Moat Monster
- Black Widow Shark
- Firebat
- Frog-Dog
- Giant Treetop Spider
- Gaw-Rak-Rak
- Hopper
- Lizarthon
- Miggit Swarm Monster
- Pterodactyl
- Sandy Tailed Hooji
- Sea-Quines
- Shadowbeast
- Snake Birds
- Tongue-a-Saurus
- Tricorn Elk
- Unicorns
- Winged Water Snakes