Margaret O'Brien as Flavia Mills

Angela Lansbury as Susan Bratten

George Murphy as Steve Abbutt

Phyllis Thaxter as Helen Mills

Warner Anderson as Joseph Mills

Rhys Williams as Blind Mac

Barry Nelson as Al Parker

Connie Gilchrist as Mrs. Murphy

Tom Trout as Daniel Oliver Madson

Richard Tyler as Jimmy Madson

Henry Blair as Rad Ardley

Charles Cane as Parole Officer

Richard Lane as Street Vendor

Heinie Conklin as Fourth of July Dignitary on Dais (uncredited)

Elinor Donahue as Cynthia (uncredited)

Gary Gray as Boy (uncredited)

Cameron Mitchell as Narrator-Visitor to Tenth Avenue (uncredited)

Robert Emmett O'Connor as Mr. O'Callan (uncredited)

Ray Teal as Mounted Train Yard Guard (uncredited)

Jerry Schumacher as Celebration Guest (uncredited)