Brian Donlevy

Character: Stefan Dubechek aka Steve Dangos

Ann Richards

Character: Anna O'Rourke Dangos

Walter Abel

Character: Howard Clinton

John Qualen

Character: Anton Dubechek

Stephen McNally

Character: Teddy Roosevelt Dangos / Narrator

Mary McLeod

Character: Katina 'Tina' Dangos

Bob Lowell

Character: George Washington Dangos

Erville Alderson

Character: Olson - Detroit Auto Works Technician (uncredited)

Fred Aldrich

Character: Assembly Line Worker (uncredited)

Axel Anderson

Character: Immigrant (uncredited)

Charles Bates

Character: Teddy Roosevelt Dangos - Age 8 (uncredited)

Byron Foulger

Character: High School Principal (uncredited)

Noreen Nash

Character: Vaudeville act (uncredited)

Sue Moore

Character: Minor Role (uncredited)