Oliver Duffy
Lew Ayres
Edwina 'Eddie' Brown
Laraine Day
Haguey
Mark Daniels
Krum
Bert Roach
Dr. Chandley
Russell Hicks
Fred F. Bixley
Charles Wagenheim
Officer O'Garrity
Robert Homans
Babe Stanton (uncredited)
Iris Adrian
Mrs. Geversar (uncredited)
Margaret Bert
Theater Stage Manager (uncredited)
Sam Ash
Whistles 'Over the Rainbow' (uncredited)
Robert Bradford
Dr. Shepherd (uncredited)
Ralph Brooks
Cesar Ferrari / Dr. H. Santelle
Basil Rathbone
Jarvis J. Banhoff (uncredited)
Milton Parsons
Tall Newsboy (uncredited)
Eddie Buzard
Small Newsboy (uncredited)
Bobby Callahan
Meeting Chairman (uncredited)
George M. Carleton
Bill (uncredited)
Eddy Chandler
Miss Hewitt (uncredited)
Mary Currier
Paul (uncredited)
Leslie Denison
Jim (uncredited)
Roger Moore
Crazy Man at the Clinic (uncredited)
Jules Cowles
Policeman Outside Clinic (uncredited)
Ralph Dunn
Dr. Cromwall
Walter Kingsford
Police Sergeant (uncredited)
William Lally
Police Driver (uncredited)
Dick Midgley
Policeman (uncredited)
George Magrill
Fat Man (uncredited)
Arthur Belasco
Bird Man (uncredited)
Byron Foulger
Small Boy (uncredited)
Jerry Maren
Cabbie with Cat (uncredited)
Frank Marlowe
Old Man with Telegram (uncredited)
George Ovey
Clinic Nurse (uncredited)
Edna Holland
Hospital Doctor (uncredited)
Edwin Stanley
Dr. Kurt Immelman
Miles Mander
Ambulance Doctor (uncredited)
Hooper Atchley
Ambulance Driver (uncredited)
Eddie Parker
Young Reporter (uncredited)
Rand Brooks
Reporter (uncredited)
Ernie Alexander
Jack Gardner
James Millican
Mahlon Hamilton
Photographer (uncredited)
Wally Cassell
Lester Dorr
Arthur O'Connell
Police Inspector Gallagher
Charles D. Brown
Police Telephone Operator (uncredited)
Lee Phelps
Clinic Switchboard Operator (uncredited)
Frances Rafferty
Citizen (uncredited)
Edward Hearn
Joe Yule
Psychiatrist at Lecture (uncredited)
King Baggot
Brooks Benedict
Frank McLure
Harold Miller
Cyril Ring
Count Stefenelli
Police Lieutenant Allison
Cliff Clark
Hotel Clerk (uncredited)
Cliff Danielson
Hotel Manager (uncredited)
Emmett Vogan
Trailer Announcer (Voice) (uncredited)
Frank Whitbeck
Police Car #12 Driver (uncredited)
Ray Teal
Dance Teacher (uncredited)
David Tihmar
Police Lieutenant Schaeffer
James Flavin
Ogilvie
Russell Gleason
Devlan
William Tannen
Sound Director
Douglas Shearer
Director
Charles Lederer
Set Decoration
Edwin B. Willis
Art Direction
Cedric Gibbons
Original Music Composer
Bronislau Kaper
Producer
Irving Starr
Screenplay
Rose Caylor
Director of Photography
Charles Lawton Jr.
Story
Lawrence P. Bachmann
Harry Stradling Sr.
Editor
George Boemler
Orchestrator
Leonid Raab
William Ferrari
Technical Advisor
Charles Mandell
Assistant Director
Bert Spurlin
Daniele Amfitheatrof
Costume Design
Howard Shoup
Mario Castelnuovo-Tedesco