Full cast of StuGo

Tania Gunadi

Pliny (voice)

40 episodes

Zosia Mamet

Merian (voice)

40 episodes

Gabourey Sidibe

Francis (voice)

40 episodes

Lo Mutuc

Larry (voice)

40 episodes

Deborah Baker Jr.

Sara (voice)

40 episodes

Lorraine Toussaint

Dr. Lullah (voice)

40 episodes

Zach Reino

Chip (voice)

40 episodes

Jake Green

Mr. Okay (voice)

40 episodes

Ryan Gillis

Chicho (voice) / Chicho / Muscle Mouse (voice) / Chicho / Shrimp Mutant (voice) / Chicho / Long Legs Mutant / Muscle Mouse (voice) / Muscle Mouse / Turtle Mutant (voice)

15 episodes

Eric Bauza

Wolf-Demon / Mutants (voice) / Bomb Swapper / Defuser (voice) / Nostrildamus / Pipsqueak / Tusky Boy (voice) / Question Bot (voice) / Honorabl3 Impartial-Bot / Big Mitchell (voice) / Commerical Announcer (voice) / Blood Pressure (voice) / Big Mitchell / Parrot Mutant / Robot (voice) / Big Mitchell / Blood Pressure / Catapult Kevin (voice) / Grim Reaper / Arfthur (voice)

10 episodes

Fred Tatasciore

Nils Vulfen / Ear Krill / Mudskipper (voice) / Alpha Betta / Referee Betta / Tough Betta (voice) / Dead Fish Mutant / Rock Iguana Mutant (voice) / Keanu Mutant / Snake Mutant / Frogatha's Dad (voice) / Snake Mutant / Shrimp Mutant (voice) / Jean-Michel (voice) / Nils Vulfen (voice) / Glands (voice) / Bog Dog / Keanu Mutant (voice)

9 episodes

Grey DeLisle

Frogatha / Hand Holders Announcer / Flamingo Mutant (voice) / Blobfish Mutant (voice) / Flamingo Mutant (voice) / British Narrator / Ivory Olfactus (voice)

4 episodes

Sunil Hall

Sunil the Sailor (voice)

3 episodes

Steve Wolfhard

Pig (voice) / Lemonade / Pig / Rhino Mutant (voice) / Skeletal Walrus (voice)

3 episodes

Erica Jones

Rianne (voice) / Rianne / Bethany (voice)

3 episodes