"Two dumb soda jerks dream of writing radio mysteries. When they try to pitch an idea at a radio station, they end up in the middle of a real murder when the station owner is killed during a broadcast."
Bud Abbott
as Chick Larkin
Lou Costello
as Mervin Q. Milgrim
Patric Knowles
as Jim Turner
Louise Allbritton
as Jane Little
Mary Wickes
as Juliet Collins
William Gargan
as Detective Inspector Lou
William Bendix
as Detective Sgt. Brannigan
Thomas Gomez
as Col. J.R. Andrews
Ludwig Stössel
as Dr. Anton Marek
Edmund MacDonald
as 'Murder at Midnight' Announcer
Jerome Cowan
as Heller
Walter Tetley
as 'Shorty', a studio pageboy
Joe Kirk
as Harry, 'Murder At Midnight' sound man
Don Porter
as 'Murder at Midnight' program manager
Norman Abbott
as 'Murder at Midnight' Organist
Abel Pina
as Acrobat (uncredited)
Antonio Pina
Henry Pina
Jerry Pina
Jenaro Pina
Milton Parsons
as Coroner (cameo)
Gladys Blake
as Telephone Operator
Eddie Bruce
as Bill, man telephoning Brazil
Billy Wayne
as Jake, man telephoning Alaska
Alice Fleming
as Mrs. Laffingwell, dowager telephoning Moscow
Margaret Brayton
as Radio Actress (uncredited)
Crane Whitley
as Radio Actor (uncredited)
Paul Dubov
Gene O'Donnell
Ed Emerson
as Announcer (uncredited)
Buddy Twiss
Edward Keane
as Man in drug store touting Juliet (uncredited)
Joseph La Cava
as Station Employee (uncredited)
George Ford
Jerry Frank
as Customer (uncredited)
Duke York
as Attendant with the Coroner (uncredited)
Harry Strang
as Truck Driver (uncredited)
Bobby Barber
as Test Technician in Booth (uncredited)
Chuck Hamilton
as Policeman (uncredited)
Frank McLure
as Acrobatic Show Spectator (uncredited)
Frank Penny
as Spinelli (uncredited)
Erle C. Kenton
Director
Edmund Joseph
Screenplay
Stanley Roberts
Story
John Grant
Bernard B. Brown
Sound Director
Pat Costello
Stunt Double
Jack Otterson
Art Direction
Howard Christie
Assistant Director
Robert F. Boyle
Charles Van Enger
Director of Photography
Vera West
Costume Design
Frank Skinner
Music
Arthur Hilton
Editor
Alex Gottlieb
Producer
Russell A. Gausman
Set Decoration
A.J. Gilmore
Sam Perry
Sonny Burke
Charles Henderson
Charles Previn
Music Director
Hans J. Salter
Don Raye
Milton Rosen
Richard Hageman
Hugh Prince