Boyd Irwin

Doctor

Simon LaFontanne

Mr. Craig (uncredited)

Dr. Shumway

Actor in "Othello"

Colonel Wayne

Prison Official (uncredited)

Mr. Oram (uncredited)

Hathaway (uncredited)

Elderly Gentleman (uncredited)

Cranwell - Traitor (uncredited)

Tompkins the Butler (uncredited)

Dr. Callan

Confidence Man (uncredited)

Critic at Gallery (uncredited)

Passerby (uncredited)

Randall the Tailor

Short-Tempered Officer Closing Window (uncredited)

Health Inspector (uncredited)

Guest (uncredited)

Scotland Yard Man Finding Cake Box (uncredited)

Harry, Audience Member (uncredited)

Senator (uncredited)

Assemblyman (uncredited)

Elliott Jannings, fifth columnist

Major Griscom

Senator (uncredited)

Mountie Captain