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)