Edna Murphy
as Corinne Grant
Charley Chase
as Glen Harper
Hayford Hobbs
as Donald Bartlett
William F. Moran
as Dr. Philip Markham
Scott Pembroke
as Dr. Harrison
William Gillespie
as John Dryden
Glenn Tryon
as Reporter
Ray Myers
as Clinton Hodge
Colin Kenny
as Stanley Fleming
Eddie Baker
as Jack Reynolds (as Ed Baker)
Fred McPherson
as Professor Comstock
Frank Lackteen
as Malay George
