Hamilton Camp
— Gizmo-Duck / Fenton Crackshell (voice)
Miriam Flynn
— Gandra Dee (voice)
June Foray
— Ma Beagle (voice)
Kathleen Freeman
— Mrs. Crackshell (voice)
Joan Gerber
— Mrs. Beakley (voice)
Chuck McCann
— Duckworth / Burger Beagle / Bouncer Beagle (voice)
Terence McGovern
— Launchpad McQuack (voice)
Hal Smith
— Gyro Gearloose / Guard Robot (voice)
Russi Taylor
— Huey / Dewey / Louie (voice)
Frank Welker
— Big Time Beagle / Megabyte Beagle / M.E.L / Country Twanging Toast Timer (voice)
Alan Young
— Scrooge McDuck / Prison Guard (voice)