Horace (voice) (archive footage)
Blodgett
Mr. Martindale (Lawyer) (uncredited)
Lord Derby
Horace / Inspector Craven (voice)
Laelius
Earl of Gloucester
Lord Mayor (uncredited)
Duke of Bedford, England's Regent
Prosecutor (uncredited)
J. Norton Sims
Judge (uncredited)
Actor in "Othello"
Inspector Hobday
Cadum
Gen. Webb
Henderson
Colonel Cavanaugh
Park Patrol Constable-in-Charge Ernie Hobbs
Prof. William Kilbane
Landers - Newgate Prison Governor (uncredited)
Prime Minister
John Brent
Sir Humphrey Mong
Dr. Onslow
Supt. Clay (uncredited)
Sam--Waiter at Inn
Businessman (uncredited)
Radio Newscaster (voice) (uncredited)
Geoffrey Musgrave
Sir Roger Wembley
Sir James Langley
Patrick Berwick
Speaker of Assembly (uncredited)
Hugo Stregel
Aristocratic Landowner (uncredited)
Grenfall
Dr. Jackwin
Dr. Richards
Sir Henry
Canadian Major
Dr. Heath
Lord Gerald Risborough
Solicitor-General
English Governor
Insp. Hugh Drake
Communist President
Darnell
Stephen Harmon
Grideau, the Prison Head
Sir William Johnson
Lord Elfie (uncredited)
Ramensky
Colonel Demassey
Dr. Cesar Sabbatt
