June Foray
Grammi Gummi (voice) (95 eps)
Lorenzo Music
Tummi Gummi (voice) (95 eps)
Katie Leigh
Sunni Gummi (voice) (95 eps)
Noelle North
Cubbi Gummi / Princess Calla (voice) (95 eps)
Michael Rye
Duke Igthorn / King Gregor (voice) (95 eps)
Will Ryan
Unwin / Ogres (voice) (95 eps)
Paul Winchell
Zummi Gummi (voice) (76 eps)
Corey Burton
Gruffi Gummi (voice) (74 eps)
Brian Cummings
Sir Tuxford / Artie Deco (voice) (74 eps)
Jim Cummings
Zummi Gummi (voice) (25 eps)
Bill Scott
Gruffi Gummi / Sir Tuxford / Toadwart /Angelo Davini (voice) (21 eps)
Christian Jacobs
Cavin (voice) (20 eps)
Rob Paulsen
Gusto Gummi (voice) (17 eps)
Frank Welker
Zephyrs (voice) (10 eps)
Tress MacNeille
Lady Bane (voice) (9 eps)
Jason Marsden
Cavin (voice) (6 eps)
Walker Edmiston
Sir Thornberry (voice) (6 eps)
R.J. Williams
Cavin (voice) (5 eps)
Peter Cullen
Gritty Gummi (voice) (5 eps)
Roger C. Carmel
Sir Tuxford (voice) (5 eps)
Brett Johnson
Cavin (voice) (4 eps)
Chuck McCann
Knight / Chef (voice) (4 eps)
Pat Musick
Ursa Gummi (voice) (4 eps)
Bob Holt
Dom Gordo of Ghent (voice) (2 eps)
Russi Taylor
Ethalyn / Emmadryl (voice) (2 eps)
Dana Hill
Buddy Gummi (voice) (2 eps)
Kath Soucie
Princess Marie (voice) (2 eps)
Hamilton Camp
King Jean-Claude (voice) (2 eps)
Hal Smith
Nogum (voice) (2 eps)
Patricia Parris
Trina (voice) (2 eps)
Jymn Magon
Artie Deco (voice) (1 eps)
David Faustino
Cavin (voice) (1 eps)
Howard Morris
Sir Paunch (voice) (1 eps)
Lennie Weinrib
Zorlock (voice) (1 eps)
Ed Gilbert
Le Grand Fromage (voice) (1 eps)