Lewis Martin

as Matthew Collins

as Col. Weybright

as Sir Finsdale

as Captain Dawn

as Steven Hardy

as Inspector Cranford

as Mr. Taylor

as Detective (uncredited)

as Police Lt. Ed Chisolm

as Ben Hardy

as Squad Commander

as Police Sergeant (uncredited)

as Judge

as Andrew Wiggins

as Mr. Macready

as Mr. Grinell

as Reeves

as Dr. Forbes

as Jim White (uncredited)

as Roger Clay