George Sanders

Character: Robert Fleming

Lucille Ball

Character: Sandra Carpenter

Charles Coburn

Character: Harley Temple

Boris Karloff

Character: Charles van Druten

Cedric Hardwicke

Character: Julian Wilde

Joseph Calleia

Character: Nicholas Moryani

Alan Mowbray

Character: Lyle Maxwell

George Zucco

Character: H.R. Barrett

Robert Coote

Character: Detective Wilson

Alan Napier

Character: Detective Gordon

Tanis Chandler

Character: Lucy Barnard

Ann Codee

Character: Matilda

Jimmy Aubrey

Character: Nelson (uncredited)

Jack Chefe

Character: Pierre (uncredited)

Charles Coleman

Character: Sir Charles (uncredited)

Alex Frazer

Character: Professor Harkness (uncredited)

Gerald Hamer

Character: Harry Milton (uncredited)

Eddie Parks

Character: Oswald Pickering (uncredited)

Dorothy Vaughan

Character: Mrs. Miller (uncredited)

Stuart Hall

Character: Charles (uncredited)

Herbert Evans

Character: Fleming's Butler (uncredited)

Sam Harris

Character: Old Man at Concert Asking for Whiskey (uncredited)

Isabel La Mal

Character: Dowager Shushing Fleming at Concert (uncredited)

Marjorie Hoshelle

Character: Robert's Rejected Girlfriend (uncredited)

Charles Ferguson

Character: Man in Dance Hall (uncredited)

Ethan Laidlaw

Character: Man in Dance Hall (uncredited)

Mike Lally

Character: Mike (uncredited)

Ethelreda Leopold

Character: Blonde Nightclub Singer (uncredited)

Annette Warren

Character: Blonde Nightclub Singer (uncredited)

Mary Jane French

Character: Nightclub Patron (uncredited)

Shep Houghton

Character: Nightclub Patron (uncredited)

Sol Murgi

Character: Nightclub Patron (uncredited)

Wilson Benge

Character: Police Criminologist (uncredited)

Jack Deery

Character: Police Officer (uncredited)

John Rice

Character: Police Officer (uncredited)

Brooks Benedict

Character: Concertgoer (uncredited)

Carl M. Leviness

Character: Concertgoer (uncredited)

James Conaty

Character: Concertgoer (uncredited)

Robert Haines

Character: Concertgoer (uncredited)

Wilbur Mack

Character: Concertgoer (uncredited)

Herschel Graham

Character: Concertgoer (uncredited)

Rudy Germane

Character: Concertgoer (uncredited)

Frank McLure

Character: Concertgoer (uncredited)

Jeffrey Sayre

Character: Concertgoer (uncredited)

Sayre Dearing

Character: Concertgoer in Lobby (uncredited)

Harold Miller

Character: Concertgoer in Lobby (uncredited)

Cyril Delevanti

Character: Medical Examiner (uncredited)

Wyndham Standing

Character: Assistant Medical Examiner (uncredited)

Eric Wilton

Character: Ticket Booth Clerk (uncredited)

Florence Wix

Character: Blue Eyes (uncredited)

Marion Gray

Character: Concertgoer (uncredited)

Joe Gilbert

Character: Concertgoer (uncredited)