John Miljan
— Bill Holt
Irene Ware
— Jane Maxwell
Iris Adrian
— Muriel Randel
Noel Madison
— Gus Colleti
Oscar Apfel
— Reuben Marshall
Barry Norton
— Tom Randel
Harry Holman
— Campbell Snowden
Betty Blythe
— Ann Randel
James P. Burtis
— Mike 'Jeff' Jefferies
Lew Kelly
— Police Sgt. Olsen
Wilson Benge
— Simpson - Butler
E.H. Calvert
— District Attorney McDougal
Stanley Blystone
— Henchman Joe (uncredited)
Sidney Bracey
— Jenkins - Butler (uncredited)
Don Brodie
— Henchman (uncredited)
Lester Dorr
— Party Guest (uncredited)
James Eagles
— Harry Randel (uncredited)
Paul Ellis
— Tony Cosmato (uncredited)
Robert Frazer
— Dr. Agnew (uncredited)
Kit Guard
— Henchman Eddie (uncredited)
Henry Hall
— Dr. Burgher (uncredited)
Frank O'Connor
— Detective McGurn (uncredited)