The Four Men of the title are British WWI veterans who decide to work secretly against enemies of the country. They aren't above a bit of murder or sabotage to serve their ends, but they consider themselves to be true patriots.
as Humphrey Mansfield
as James Brodie
as Leon Poiccard
as James Terry
as Ann Lodge
as Sir Hamar Ryman M.P.
as Frank Snell
as Myra Hastings
as B.J. Burrell
as Police Commissioner
as Inspector Falmouth
as Bill Grant
as Lady Willoughby
as Mr Hastings
as Simmons
as Pickpocket (uncredited)
as Mrs. Truscott
as Rally campaigner (uncredited)
as Taxi driver (uncredited)
as (uncredited)
as (uncredited)
as (uncredited)
as (uncredited)
as (uncredited)
as Self (archive footage) (uncredited)
as Constable Benham
as Taxi driver (uncredited)
as Self (archive footage) (uncredited)
as Policeman Outside Parliament (uncredited)
as American Broadcaster (uncredited)
as Platform Speaker (uncredited)
as Prison Governor (uncredited)