Lord Montrose
Col. Benson
Col. Bruce Evans
Inspector McIver
Mr. Cherrington
'Major' George Alfred Beach
Robert Lansing, Secretary of State
Robert (uncredited)
Commanding Officer
Inspector Robbins
Sir Stafford Hart
Father of the Bride (uncredited)
Commissioner
Colonel Tubbs-Brown
Captain James P. Hollister
The Colonel
Sir Guy Lockhead
Jerry Hawkes
