William Bendix
George Herman 'Babe' Ruth
Claire Trevor
Claire Hodgson Ruth
Charles Bickford
Brother Matthias
Sam Levene
Phil Conrad
William Frawley
Jack Dunn
Gertrude Niesen
Nightclub Singer
Stanley Clements
Western Union Boy
Robert Ellis
Babe Ruth as a Boy (as Bobby Ellis)
Lloyd Gough
Gambler Dalton
Matt Briggs
Colonel Jacob Ruppert
Paul Cavanagh
Dr. Menzies
Warren Douglas
Boston Braves' Rookie
Pat Flaherty
Bill Carrigan, Red Sox Manager
Richard Lane
Boston Braves' coach
Knox Manning
Narrator
Al Bain
Barfly (uncredited)