A suave, handsome, distinguished British leading man of stage and screen, Brook worked as a journalist and insurance agent, returned as a major from service in World War One, then made his stage debut in 1918. He began appearing in films with Debt of Honor (1919) while also working on the London stage. Brook soon became a popular, suave leading man, the perfect British gentleman with a stiff upper lip; he occasionally played villains as well. Arriving in Hollywood in 1924, he made a smooth transition into talkies with his attractive, clipped accent, remaining a top draw until at least 1934. Brook returned to Britain in 1935 and continued appearing in films for the next decade; he produced, directed and starred in his last venture, On Approval (1945), going on to make only one more movie, nearly twenty years later (The List of Adrian Messenger ). He concentrated on stage work for the rest of his career, with occasional appearances on British TV. He was married to his former co-star, Mildred Evelyn; two of their children, Faith and Lyndon Brook, have also acted in films.