Margaret O'Brien
Mike
José Iturbi
José Iturbi
June Allyson
Barbara Ainsworth
Jimmy Durante
Andrews
Marsha Hunt
Rosalind
Hugh Herbert
Uncle Ferdinand
Harry Davenport
Doctor
Marie Wilson
Marie
Larry Adler
Larry
Ben Lessy
Kickebush
Connie Gilchrist
Travelers Aid Woman
Katherine Balfour
Elsa
Helen Gilbert
Helen
Mary Parker
Anita
Madeleine Lebeau
Jane (as Madeleine LeBeau)
Ethel Griffies
Mrs. McGuff
Eddie Jackson
Singer
Jack Roth
Drummer
Willie Best
Red Cap (uncredited)
Bess Flowers
Concertgoer (uncredited)
Byron Foulger
Mr. Perkins (uncredited)