John Derek

Steve Novak

Donna Reed

Melissa McCabe

Sidney Blackmer

T.C. McCabe

Alexander Knox

Professor Megroth

Elliott Lewis

Eddie Abrams

Aldo Ray

Gene Hausler (as Aldo DaRe)

Howard St. John

Belfrage

Otto Hulett

Coach 'Preacher' Tennant

Alvin Baldock

Francis 'Clay' Clayborne

Wilbur Robertson

Bob Whittier

Charles Barnes

Moose Wagner (as Charles Mercer Barnes)

Bill Martin

Joe Mestrovic

Mickey Knox

Joey Novak

Sandro Giglio

Poppa Jan Novak

Tito Vuolo

Manuel

Don Gibson

Red Evans

Frances Chaney

Nurse (uncredited)