James Cagney as George M. Cohan

Joan Leslie as Mary

Walter Huston as Jerry Cohan

Richard Whorf as Sam Harris

Irene Manning as Fay Templeton

George Tobias as Dietz

Rosemary DeCamp as Nellie Cohan

Jeanne Cagney as Josie Cohan

Frances Langford as Singer

George Barbier as Erlanger

Walter Catlett as Theatre Manager

Douglas Croft as George M. Cohan, as a boy of 13

Eddie Foy Jr. as Eddie Foy

Minor Watson as Albee

Chester Clute as Goff

Odette Myrtil as Madame Bartholdi

Patsy Parsons as Josie Cohan, as a girl of 12

S.Z. Sakall as Schwab

Jack Young as The President

Ann Doran as Receptionist (uncredited)

Frank Faylen as Sergeant on Parade (uncredited)

Pat Flaherty as Sgt. Lewis (uncredited)

Bert Moorhouse as Maurice Ruppe (uncredited)

Dolores Moran as The Pippirino (uncredited)

Poppy Wilde as Chorus Girl for 'Little Johnny Jones' Number (uncredited)

Phyllis Kennedy as Fanny (uncredited)

Doris Merrick as (uncredited role)

Jean Inness as Reporter (uncredited)

Dorothy Kelly as

Hazel Dohlman as Theatre Patron (uncredited)

John Breen as Soldier (uncredited)

Jack Deery as Theatre Patron (uncredited)

John Alban as Theatre Patron

Murray Alper as Wiseguy

Audrey Long as Dietz and Goff's Receptionst