 Belfrage is reported as performing on stage in London with The Strolling Players in February 1923 He played in a notable triumph—A Sleeping Clergyman—with Robert Donat in 1933 and in BBC radio plays in 1934.He appeared in his first film in 1932.He was a broadcaster in the early days of 2LO at Savoy Hill, and in 1935 joined the BBC as a casting director and later became a news reader and announcer.