John Pickard
as Detective
Anabel Shaw
as Mrs. Jean Albert
Richard Jaeckel
as Bull
Thelma Ritter
as Mrs. Katie Cusack
Tony Curtis
as Mitch
Judy Nugent
as Little Girl
Luis Van Rooten
as Joe Cusack
Frank Cady
as Shirley's Partner
Richard Benedict
as Gaggsy Steens
Joseph Turkel
as Shimmy Stockton
Jeff Corey
as Police Lieutenant Louie Macon
Mickey Knox
as Larry
Sharon McManus
as Alice Cusack
Robert Osterloh
as Mr. Bannon
Bert Conway
as Principal Hayes
Stephen McNally
as Stan Albert
Sandra Gould
as Shirley
Sue England
as Betty Maylor
Barbara Whiting
as Annie Kane
Peter Fernandez
as Frank Cusack
Al Ramsen
as Benjamin "Benny" Wilks
Joshua Shelley
as Theodore "Crazy" Perrin
Al Eben
as Detective Kleiner
Sara Berner
as Selma
Alfred Croce
as Boy Dancer
Joe Draper
as Policeman