Perry Mason
Warren William
Bessie Foley
Mary Astor
Clinton Foley
Russell Hicks
Dr. Carl Cooper
Frank Reicher
Judge Markham
Addison Richards
George Dobbs
James P. Burtis
Ed Wheeler
Eddie Shubert
David Clark
Harry Seymour
Juror (uncredited)
Stanley Blystone
Reporter in Courtroom (uncredited)
Don Brodie
Captain Kelly (uncredited)
Joseph Crehan
Bill Elliott
Sgt. Holcomb
Allen Jenkins
Detective Driving Police Car (uncredited)
Frank Fanning
Courtroom Spectator (uncredited)
Jonathan Hale
Deputy (uncredited)
Eddie Hart
Detective (uncredited)
Milton Kibbee
Prince (uncredited)
Lightning the German Shepherd
Bailiff (uncredited)
Henry Otho
Carl Trask (uncredited)
Joe Sawyer
Reporter with Camera in Courtroom (uncredited)
Charles Sherlock
Monte Vandergrift
Telegram Clerk (uncredited)
Jack Wise
District Attorney Claude Drumm
Grant Mitchell
Della Street
Helen Trenholme
Elizabeth Walker
Helen Lowell
Lucy Benton
Dorothy Tree
Arthur Cartwright
Gordon Westcott
Sam Martin - Taxi Driver
Harry Tyler
Sheriff Bill Pemberton
Arthur Aylesworth
Costume Design
Orry-Kelly
Director
Alan Crosland
Story
Erle Stanley Gardner
Screenplay
Ben Markson
Conductor
Leo F. Forbstein
Director of Photography
William Rees
Editor
James Gibbon
Art Direction
John Hughes