Tyrone Power as Dion O'Leary

Alice Faye as Belle Fawcett

Don Ameche as Jack O'Leary

Alice Brady as Molly O'Leary

Andy Devine as Pickle Bixby

Brian Donlevy as Gil Warren

Phyllis Brooks as Ann Colby

Tom Brown as Bob O'Leary

Sidney Blackmer as General Phil Sheridan

Berton Churchill as Senator Colby

June Storey as Gretchen

Paul Hurst as Mitch

Tyler Brooke as Specialty Singer

J. Anthony Hughes as Pat O'Leary

Gene Reynolds as Dion O'Leary (as a boy)

Bobs Watson as Bob O'Leary (as a boy)

Billy Watson as Jack O'Leary (as a boy)

Madame Sul-Te-Wan as Hattie

Spencer Charters as Commissioner W.J. Beavers

Rondo Hatton as Rondo - Body Guard

Thelma Manning as Carrie Donahue

Ruth Gillette as Miss Lou

Eddie Collins as Drunk

Scotty Mattraw as Beef King

Joe Twerp as Stuttering Clerk

Clarence Wilson as Lawyer

Frank Dae as Judge

Harry Stubbs as Fire Commissioner

Joe King as Ship's Captain

Francis Ford as Driver

Bob Murphy as Police Officer

Wade Boteler as Police Officer

Gustav von Seyffertitz as Dutch - Politician in Jack's Office

Russell Hicks as Politician in Jack's Office

Brooks Benedict as Courtroom Spectator (uncredited)

George Chandler as Onlooker (uncredited)

Bess Flowers as Woman with Colby (uncredited)

Vera Lewis as Wedding Witness (uncredited)

Bert Moorhouse as Opening Night Guest (uncredited)

William H. O'Brien as Senate Waiter (uncredited)

Martin Turner as Refugee