- Tony Pope - Additional Voices (voice)
- Cam Clarke - Daring Dan Dawson (voice)
- Hal Smith - Joe Magee (voice)
- John Stephenson - Professor Crackpotkin (voice)
- Robert Ito - Wan-Lo (voice)
- Dan Gilvezan - Business Speaker (voice)
- Tress MacNeille - Kitten Caboodle (voice)
- Alan Young - Doctor (voice)
- Edie McClurg - Mrs. Vandersnoot (voice)
- Maggie Roswell - Girl / Sally (voice)
- Corey Burton - Mr. Sultan (voice)
- Corey Burton - Stork Husband / Elephant Thief / Paperboy (voice)
- Rob Paulsen - Ratchet / Dr. Debolt / Khan Pilot (voice)
- Rob Paulsen - Dr. Debolt (voice)
- Patrick Gorman - Prof. Martin Torque (voice)
- Peter Cullen - Octopus / Walrus Captain (voice)
- Jodi Carlisle - Hippo Wife (voice)
- David L. Lander - Weazel (voice)
- Peter Renaday - Capt. William Stansbury (voice)
- Charlie Adler - Mad Dog (voice)
- Charlie Adler - Additional Voices (voice)
- Charlie Adler - Mad Dog / Hacksaw (voice)
- Charlie Adler - Mad Dog / Bank Representative (voice)
- Charlie Adler - Mad Dog / Freelance Pilot (voice)
- Charlie Adler - Mad Dog / Pilot (voice)
- Charlie Adler - Mad Dog / Delivery Man (voice)
- Charlie Adler - Gasman / Maddog (voice)
- Charlie Adler - Howard Huge (voice)
- Kath Soucie - Princess Lotta Lamour (voice)
- Kath Soucie - Clementine Clevenger (voice)
- Sherry Lynn - Policewoman / Kathy Throgmorton (voice)
- Ken Sansom - Ralph Throgmorton (voice)
- Hamilton Camp - Seymore (voice)
- Hamilton Camp - Whistlestop Jackson (voice)
- Hamilton Camp - Babyface Half Nelson / Police Officer
- Robert Ridgely - Director (voice)
- Maurice LaMarche - Owl Capone (voice)
- Maurice LaMarche - General Patton / Bart (voice)
- Linda Gary - Muffy Vanderschmere (voice)
- Linda Gary - Woman at Laundromat (voice)
- Townsend Coleman - Khan Pilot (voice)
- Townsend Coleman - Turkey Client / Newsreel Announcer (voice)
- Brian Cummings - Jack Case (voice)
- Danny Mann - Fred (voice)
- Danny Mann - Gertalin (voice)
- Danny Mann - Sergeant Grumpy (voice)
- Danny Mann - Additional Voices (voice)
- Danny Mann - Thembrian Pilot (voice)
- Joan Gerber - Helga (voice)
- Stan Jones - Hans the Butler (voice)
- Ron Feinberg - Cool Hands Luke (voice)
- Ron Feinberg - Coolhands Luke (voice)
- Ron Feinberg - Arnold (voice)
- Jerry Houser - Badger Goon (voice)
- Jerry Houser - Kidnapper #1 / Police Officer (voice)
- Patrick Pinney - Professor O'Bowens (voice)
- Howard Morris - Postal Worker (voice)
- Howard Morris - King Amok (voice)
- Dan Castellaneta - Prince Wudolph (voice)
- Dan Castellaneta - Dr. Zibaldo (voice)
- Sheryl Bernstein - Broadcast Sally (voice)
- Sheryl Bernstein - High Marshal's Wife (voice)
- Debi Derryberry - Wan-Lo's Daughter (voice)
- Michael Bell - Rob (voice)
- Michael Bell - Herman Grapple (voice)
- Michael Bell - Mr. Perry (voice)
- Michael Bell - High Marshal's Wife (voice)
- Michael Bell - Colonel Grogg (voice)
- S. Scott Bullock - Thembrian Pilot (voice)
- S. Scott Bullock - Robert Service (voice)
- S. Scott Bullock - Ignatius (Ignatz) (voice)
- S. Scott Bullock - Additional Voices (voice)
- S. Scott Bullock - Jacques Tojoure (voice)
- Patric Zimmerman - Joe Cropduster (voice)
- Jim Cummings - Don Karnage (voice)
- Jim Cummings - Louie (voice)
- Jim Cummings - Louie / Red Robe Thug #1 (voice)
- Jim Cummings - Don Karnage / Louie (voice)
- Jim Cummings - Rhino Pilot / Louie (voice)
- Jim Cummings - Patriotic Flounder Guard (voice)
- Jim Cummings - Louie / Don Karnage (voice)
- Jim Cummings - Prince Rudolph's Goons (voice)
- Jim Cummings - Trader Moe / Gorilla Goon (voice)
- Jim Cummings - Don Karnage / Dock Manager (voice)
- Jim Cummings - Louie / Don Karnage / Louise L'Amour (voice)
- Jim Cummings - Louie / Chauffeur / Newsman (voice)
- Jim Cummings - Don Karnage / Louie / Khan's Aide / Air Pirate (voice)
- Jim Cummings - MacKnee (voice)
- Jim Cummings - Back-Alley Thug (voice)
- Jim Cummings - Trader Moe / Gorilla Goon / Policeman over P.A. (voice)
- Jim Cummings - Inspector Burrow (voice)
- Jim Cummings - Don Karnage / Louie / Kahn's Apprentice (voice)
- Jim Cummings - Covington (voice)
- Jim Cummings - Trader Moe / Polar Bear (voice)
- Jim Cummings - Whistlestop Announcer (voice)
- Jim Cummings - Tiny / Officer Malarkey (voice)
- Jim Cummings - Don Karnage / Hal / Louie (voice)
- Jim Cummings - Thembrian Judge (voice)
- Jim Cummings - El Gato (voice)
- Jim Cummings - Louie / O'Roarke (voice)
- Jim Cummings - Louie / Nanuk / Bob (voice)
- Jim Cummings - Additional Voices (voice)
- Brandon Bluhm - Jungle Ace Member (voice)
- Jack Angel - High Marshal (voice)
- Jack Angel - Detective (voice)
- Jack Angel - Barney O'Turret (voice)
- Jack Angel - The High Marshal / Wally (voice)
- Jack Angel - Dock Manager (voice)
- Jack Angel - Finance Minister Lafong (voice)
- Jack Angel - Pig Salesman (voice)
- Jack Angel - Usher (voice)
- Jack Angel - Chauffer (voice)
- Jack Angel - Additional Voices (voice)
- Gabriel Damon - Additional Voices (voice)
- Ben Ryan Ganger - Oscar Vandersnoot (voice)
- Julie Uribe - Bunnie (voice)
- Frank Welker - Wildey Pole / Additional Voices (voice)
- Frank Welker - Buffy Vanderschmere (voice)
- Frank Welker - Additional Voices (voice)
- Frank Welker - Brutis / Red Robe Thug #2 / Scarabs (voice)
- Frank Welker - Wendell (voice)
- Frank Welker - Red Robe Thug #2 / Scarabs (voice)
- Frank Welker - Sparky / Maswich Village Mayor (voice)
- Frank Welker - Captain Hotspur (voice)
- Frank Welker - Al / Creatures (voice)
- Frank Welker - Dimple (voice)
- Frank Welker - Giant Condor (voice)
- Frank Welker - Henry / Inkaras / Gator Policeman (voice)
- Frank Welker - Pilot Jack / Gorilla-Birds (voice)
- Tim Curry - Thaddeos E. Klang (voice)
- Ellen Gerstell - Katie Dodd (voice)
- Susan Silo - Shapely Harem Girl (voice)
- Susan Silo - Airplane Jane (Plane Jane) (voice)
- Susan Silo - Mary Lamb (voice)
- Chuck McCann - Dumptruck (voice)
- Chuck McCann - Dumptruck / Gibber (voice)
- Chuck McCann - Additional Voices (voice)
- Chuck McCann - Rhino Goon (voice)
- Chuck McCann - Guard (voice)
- Chuck McCann - Ray (voice)
- Henry Polic II - Police Chief (voice)
- David Doyle - Sheriff Gomer Cleghorn (voice)
- Kenneth Mars - Buzz / Heimlich Menudo (voice)
- Kenneth Mars - Buzz (voice)
- Kenneth Mars - Heimlich Menudo (voice)
- Allan Melvin - Warden Slammer (voice)
- Russi Taylor - Mrs. Rockafeather (voice)
- Hal Rayle - Additional Voices (voice)
- Hal Rayle - Radio Host / Ice Cream Man / Otter Firstmate (voice)
- Hal Rayle - Pilot #1 (voice)
- Victoria Carroll - Princess Grace (voice)
- Edan Gross - Bobbo (voice)
- Liz Georges - Mira the Archaeologist (voice)
- Mark L. Taylor - Douglas 'Dougie' Benson (voice)
- Phil Crowley - Walters (voice)
- B.J. Ward - Records Clerk (voice)
- Alan Oppenheimer - Principal Ed Pomeroy (voice)
- Susan Tolsky - Mrs. Morrissey (voice)
- Billie Hayes - Mrs. Half Nelson (voice)
- Billie Hayes - Crazy Edie (voice)
- Rodger Bumpass - Dr. Axolotl (voice)
- Jennifer Darling - Mrs. Snarly (voice)
- Whit Hertford - Ernie (voice)
- David Lodge - M.E.L. (voice)
- Mitzi McCall - Una (voice)
- Phil Hartman - Ace London (voice)
- Michael Rye - Chancellor Trample (voice)
- Neil Ross - Reggie (voice)
- Simon Templeman - Rick Sky (voice)
- Michael Gough - Colonel Ivanod Spigot (voice)
- Jim MacGeorge - Mick (voice)
- Lorenzo Music - Sgt. Dunder (voice)
- James Gilstrap
Edie McClurg hace el papel de Mrs. Vandersnoot (voice).
Dan Castellaneta interpreta a Dr. Zibaldo (voice) en la serie.
Ed Gilbert hace el papel de Baloo (voice).
Sally Struthers interpreta a Rebecca Cunningham (voice) en la serie.
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