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