- Lucile Gleason - Mrs. Hutchins
- Johnny Arthur - Mr. Frankenstein (uncredited)
- Stanley Blystone - Police Radio Operator (uncredited)
- Tom Brower - Police Sergeant (uncredited)
- Spencer Charters - Dr. Bunting (uncredited)
- Frankie Darro - Spike Salisbury (uncredited)
- John Dilson - Analyst Examining Gelatin Capsule (uncredited)
- James Donlan - Taxi Driver (uncredited)
- Paul Fix - Lou Pender (uncredited)
- Dorothy Granger - Fill-in Receptionist (uncredited)
- Sam Hayes - Race Announcer (uncredited)
- Rollo Lloyd - Landlord (uncredited)
- Edward McWade - Minister in Film (uncredited)
- Frank Reicher - Henry Strand (uncredited)
- Charles Richman - Mr. Curtis (uncredited)
- Syd Saylor - Detective (uncredited)
- John Sheehan - Bert Murphy (uncredited)
- Buster Slaven - Newsboy (uncredited)
- Al St. John - Morgue Attendant (uncredited)
- Henry Stone - Ray Torro (uncredited)
- Bob Tansill - Joe Jerino (uncredited)
- Frank M. Thomas - Mike North (uncredited)
- Stephen Roberts
- Clem Beauchamp
- James Edward Grant
- Anthony Veiller
- Max Steiner
- Roy Webb
- Roy Webb
William Powell interpreta a Dr. Lawrence 'Brad' Bradford en la película.
Jean Arthur interpreta a Paula Bradford en la película.
James Gleason interpreta a Inspector Corrigan en la película.
Eric Blore interpreta a Stokes, Bradford's Butler en la película.
Robert Armstrong interpreta a Nick Martel, Bookie en la película.
Lila Lee interpreta a Miss Prentiss, Bradford's Receptionist en la película.
Grant Mitchell hace el papel de John Summers, Luxury's Owner.
Erin O'Brien-Moore hace el papel de Mrs. Summers.
Ralph Morgan hace el papel de Leroy Hutchins, War Cloud's Owner.
Lucile Gleason interpreta a Mrs. Hutchins en la película.
Johnny Arthur hace el papel de Mr. Frankenstein (uncredited).
Stanley Blystone hace el papel de Police Radio Operator (uncredited).
Tom Brower interpreta a Police Sergeant (uncredited) en la película.
Spencer Charters interpreta a Dr. Bunting (uncredited) en la película.
Frankie Darro interpreta a Spike Salisbury (uncredited) en la película.
John Dilson hace el papel de Analyst Examining Gelatin Capsule (uncredited).
James Donlan interpreta a Taxi Driver (uncredited) en la película.
Paul Fix interpreta a Lou Pender (uncredited) en la película.
Dorothy Granger interpreta a Fill-in Receptionist (uncredited) en la película.
Sam Hayes interpreta a Race Announcer (uncredited) en la película.
Rollo Lloyd hace el papel de Landlord (uncredited).
Edward McWade interpreta a Minister in Film (uncredited) en la película.
Frank Reicher interpreta a Henry Strand (uncredited) en la película.
Charles Richman interpreta a Mr. Curtis (uncredited) en la película.
Syd Saylor interpreta a Detective (uncredited) en la película.
John Sheehan interpreta a Bert Murphy (uncredited) en la película.
Buster Slaven interpreta a Newsboy (uncredited) en la película.
Al St. John interpreta a Morgue Attendant (uncredited) en la película.
Henry Stone hace el papel de Ray Torro (uncredited).
Bob Tansill hace el papel de Joe Jerino (uncredited).
Frank M. Thomas interpreta a Mike North (uncredited) en la película.
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