Judy Garland

Nellie Kelly / Little Nellie Kelly

George Murphy

Jerry Kelly

Charles Winninger

Michael Noonan

Douglas McPhail

Dennis Fogarty

Arthur Shields

Timothy Fogarty

Rita Page

Mary Fogarty

Forrester Harvey

Moriarity

James Burke

Sergeant McGowan

Hooper Atchley

Police Surgeon (uncredited)

Barbara Bedford

Miss Wilson (uncredited)

Sven Hugo Borg

Immigrant at Citizenship Ceremony (uncredited)

Joseph Crehan

Commissioner O'Brien (uncredited)

George Guhl

Postman (uncredited)

Charles Halton

Second Judge (uncredited)

Edward Hearn

Second Court Clerk (uncredited)

Robert Homans

Dooley Pub Owner (uncredited)

Shep Houghton

Party Guest (uncredited)

Robert Emmett Keane

Dr. Walton (uncredited)

Milton Kibbee

First Court Clerk (uncredited)

Cathy Lewis

Western Union Operator (uncredited)

George McKay

Workman at Fogarty's (uncredited)

Sidney Miller

Boy at Dance (uncredited)

Howard M. Mitchell

Detective Boyd (uncredited)

Frank O'Connor

Irish Crony in Pub (uncredited)

Pat O'Malley

Mounted Policeman (uncredited)

Lee Phelps

Detective Barter (uncredited)

John Raitt

Intern (uncredited)

Bob Reeves

Party Guest (uncredited)

Addison Richards

Naturalization Judge (uncredited)

Cyril Ring

Man Bumped by Dennis (uncredited)

Harry Semels

Immigrant at Citizenship Ceremony (uncredited)

Almira Sessions

Miss Corrigan (uncredited)

Cap Somers

Party Guest (uncredited)

Douglas Spencer

Policeman in Dance Line (uncredited)