James Cagney as Jerry Plunkett

Pat O'Brien as Father Duffy

George Brent as Wild Bill Donovan

Jeffrey Lynn as Joyce Kilmer

Alan Hale as Big Mike Wynn

Frank McHugh as "Crepe Hanger" Burke

Dennis Morgan as Lieutenant Ames

Dick Foran as Long John Wynn

William Lundigan as Timmy Wynn

Guinn 'Big Boy' Williams as Paddy Dolan

Henry O'Neill as Colonel

John Litel as Captain Mangan

Sammy Cohen as Mike Murphy

Harvey Stephens as Major Anderson

William Hopper as Private Turner

Tom Dugan as Private McManus

Frank Wilcox as Lieutenant Norman

John Arledge as Alabama Man #2 (uncredited)

Frank Faylen as Engineer Sergeant (uncredited)

George Reeves as Jack O'Keefe (uncredited)

Roland Varno as German Officer (uncredited)

Herbert Anderson as Private Casey (uncredited)

Trevor Bardette as Alabama Man #1 (uncredited)

Jack Boyle as Chuck (uncredited)

Richard Clayton as Tierney (uncredited)

Frank Coghlan Jr. as Jimmy (uncredited)

Tom Coleman as Wounded Soldier (uncredited)

James Conaty as Officer at Briefing (uncredited)

Joseph Crehan as Inoculations Doctor (uncredited)

John Daheim as Soldier (uncredited)

Eddie Dew as Regan (uncredited)

Ralph Dunn as Medical Captain (uncredited)

Edgar Edwards as Engineer Officer (uncredited)

James Flavin as Supply Sergeant (uncredited)

Jerry Fletcher as Telephonist (uncredited)

Arno Frey as German Officer (uncredited)

Edmund Glover as Alabama Man #4 (uncredited)

Chuck Hamilton as Soldier Watching Fight (uncredited)

John Harron as Carrol (uncredited)

J. Anthony Hughes as Healey (uncredited)

Layne Ireland as Hefferman (uncredited)

Donald Kerr as New Recruit (uncredited)

George Kilgen as Ryan (uncredited)

Jacques Lory as Waiter (uncredited)

Wilfred Lucas as Eye Doctor (uncredited)

Frank Mayo as Captain Bootz (uncredited)

Frank Melton as Alabama Man #3 (uncredited)

Elmo Murray as O'Brien (uncredited)

Byron Nelson as Soldier (uncredited)

George O'Hanlon as Eddie Kearney (uncredited)

Jack Perrin as Major (uncredited)

John Ridgely as Moran (uncredited)

Frank Sully as Sergeant (uncredited)

Emmett Vogan as Doctor (uncredited)