Charles D. Brown
Insp. Burns
Marvin Miller
Casper
Martin Kosleck
Karl Ganss
Charles Lane
Dr. Steiner (uncredited)
Warner Baxter
Dr. Robert Ordway
Walter Soderling
Tobin's Servant (uncredited)
Charles Arnt
Attorney Allen S. Tobin (uncredited)
Wilton Graff
Alexander 'Alec' Girard (uncredited)
Thomas E. Jackson
Walter Cummings (uncredited)
Robert Barrat
Clyde Travers (as Robert H. Barrat)
Egon Brecher
Dr. Evans (uncredited)
Byron Foulger
Harris, Makeup Man (uncredited)
Irene Tedrow
Nurse Florence White (uncredited)
George Meeker
Walter Foster (uncredited)
Skelton Knaggs
Louie (uncredited)
Mona Barrie
Harriet Travers
Craig Reynolds
Jack Swayne (uncredited)
Peggy Converse
Connie Day (uncredited)
Ted Hecht
Armand Morcel (uncredited)
Adele Roberts
Claire Foster (as Adelle Roberts)