Richard Hench as Randy / Black Claw

Roger Maycock as Kershaw Ellerbe

Frank McDonald as Ben Murphy

Carol Sue Flockhart as Louise Landon

Jo-Ann Robinson as D.J.

Barbara Magnusson as Ellen Corman

Kirk Alyn as Prof. Manchen

Carroll Borland as Dr. Sharon Reynolds

Cynthia Hartline as Ann

Forrest J. Ackerman as Professor Trentwood

George Randall as Billy Ironwing

Jay Walker as Kyle Dunne

Frank Scott as Prospector

Romeo Rodriguis as Cashier