Cast
Jean Muir
Ellen Haslett
Sam Hayes
Radio Announcer (uncredited)
Paul Panzer
Pierre - Man Carrying Injured Suzy (uncredited)
Dick Purcell
Trapped Draegerman (uncredited)
Myrtle Stedman
Nurse (uncredited)
Robert Barrat
Martin Crane
Gordon Oliver
Pete Lawson
Eddy Chandler
Driller (uncredited)
Henry O'Neill
Dr. Thomas Haslett
Helen MacKellar
Mrs. Mary Haslett
Joseph Crehan
Dr. Stuart Hunter
Herbert Heywood
Steve
Ben Hendricks Jr.
Captain Harper
John J. Richardson
Jack - Pete's Co-Worker (uncredited)
Barton MacLane
Andrew Beaupre
Addison Richards
John McNally
Walter Miller
Maxwell
Russ Powell
Toby - the Bartender (uncredited)