Jack Conway
Director Edwin H. Knopf
Producer

William Powell
David Talbot aka Jean Pelletier Hedy Lamarr
Lucienne Talbot Claire Trevor
Michelle Allaine Basil Rathbone
Henri Sarrou Margaret Wycherly
Madame Pelletier Felix Bressart
Dr. Andre Tessier Sig Ruman
Dr. Alex Dubroc H.B. Warner
Prosecuting Attorney Philip Merivale
Commissaire Enrique Acosta
Associate Judge (uncredited) Francis X. Bushman Jr.
Giant Policeman (uncredited) Frank Conroy
Defense Attorney (uncredited)

John H. Kafka
Story Howard Emmett Rogers
Story Guy Trosper
Screenplay Bronislau Kaper
Original Music Composer Joseph Ruttenberg
Director of Photography George Boemler
Editor