Double Danger

Robert Crane

Carolyn Martin

Gordon Ainsley, aka Henry Robinson

Police Commissioner David Theron

Taylor

Fentriss, aka Gilhooley

'Babs' Theron

Roy West

Mrs. Edith Theron

Bald Theron Servant

Dr. Hilliard

Thornton - Theron's majordomo (uncredited)

Mrs. Jerome Courtland (uncredited)

Nurse Agnes Smith (uncredited)

Jewelry Deliverer (uncredited)

Harris - the Courtland Butler (uncredited)

Police Sergeant O'Riley (uncredited)

Phoney Delivery Driver with Taylor (uncredited)

Standing Policeman (uncredited)

Seated Policeman (uncredited)

Charles, Ainsley's chauffeur (uncredited)