Professor Donald Hardwick
Zelda Manion
Linda McKay
Aunt Martha Hogan
Ed Clark
Joe Dirk
Aunt Penelope Hardwick
Killer (as Maxie Rosenblum)
Allie Gray
Stanislaus Pysinski
Aunt Annabella Hardwick
Aunt Henrietta Hardwick
Sam' Hudson (as Bill Davidson)
Judge
Dean Burton
Courtroom Spectator (uncredited)
Professor (uncredited)
Nightclub Patron (uncredited)
Maid (uncredited)
Pysinski Associate (uncredited)
Extra in Nightclub (uncredited)
Mr. Maurice, First Witness (uncredited)
Piano Tuner (uncredited)
Extra at Bar (uncredited)
Jitterbug Dancer (uncredited)
Taxi Driver (uncredited)
Bailiff (uncredited)
Attorney at Plaintiff's Table (uncredited)
Bartender (uncredited)
Johnny Collins (uncredited)
Clerk (uncredited)
Bandleader (uncredited)
Waiter (uncredited)
Capt. Gregory Waddington-Smith (uncredited)
Plaintiff's Attorney (uncredited)
Radio Listener (uncredited)
Professor Trill (uncredited)
Attorney at Defense Table (uncredited)
Arranger (uncredited)
Party Guest (uncredited)
Hardwick's Attorney (uncredited)
Harry (uncredited)
Miss Danning (uncredited)
Radio Announcer (uncredited)
Announcer (uncredited)
Mr. Mankton (uncredited)
Headwaiter (uncredited)