Alan Young as Scrooge McDuck (voice)

Tony Anselmo as Donald Duck (voice)

Russi Taylor as Huey / Dewey / Louie / Webby / Female Reporter (voice)

Jim Cummings as El Capitan (voice)

Peter Cullen as Admiral Grimmitz/ Joaquin Slowly (voice)

Joan Gerber as Mrs. Beakley / Skiddles' Mother (voice)

Chuck McCann as Duckworth / Burger Beagle / Bouncer Beagle (voice)

Terence McGovern as Launchpad McQuack (voice)

Patricia Parris as Skiddles (voice)

Hal Smith as Gyro Gearloose / Flintheart Glomgold (voice)

Frank Welker as Bigtime Beagle / Penguin Leader (voice)

Stan Wojno as Additional Voices