- Jim Cummings - General Parvo (voice)
- Larry Drake - Captain Zachary Storm (voice)
- Karla DeVito - Woman Soldier (voice)
- David Doyle - Professor Hubert (voice)
- George Dzundza - Gustav Havoc (voice)
- Brian George - Lieutenant Skeam (voice)
- Victor Brandt - Eisnearian Ambassador (voice)
- Sheena Easton - The Groomer (voice)
- Sheena Easton - Mrs. British Prime Minister (voice)
- John Rubinow - Prosecutor (voice)
- Rob Paulsen - Wolf King (voice)
- Rob Paulsen - Katzenstoki Ambassador (voice)
- Rob Paulsen - Gas Station Attendant (voice)
- Stephen Furst - Sport (voice)
- Elizabeth Lamers - Olivia Peru (voice)
- Ed Gilbert - Judge Fore (voice)
- Philip Maurice Hayes - Sgt. Curse (voice)
- Steve Franken - Professor Eugene Atwater (voice)
- Michael McKean - Dr. Jeffrey Otitus (voice)
- Kaylan Romero - Luka (voice)
- Lara Cody - Sydney the Archaelogist (voice)
- Maurice LaMarche - Russian President (voice)
- Maurice LaMarche - Malcomb LaMarche (voice)
- Maurice LaMarche - Radio Announcer (voice)
- Bob Doucette
- Tom Ruegger
- Ken Duer
- Joey Franks
- Christopher Keenan
- Richard Stone
- Don L. Harper
- Gordon Goodwin
Jess Harnell interpreta a Hunter (voice) en la serie.
Tress MacNeille interpreta a Colleen (voice) en la serie.
Kevin Michael Richardson hace el papel de Exile (voice).
Jeff Bennett hace el papel de Blitz (voice).
Frank Welker interpreta a Shag / Muzzle (voice) en la serie.
Joseph Campanella hace el papel de Master (voice).
Capítulo disponible en las siguientes plataformas:
