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