Larry Martyn

Lawrence Larry Martyn was a British actor known for his comedy performances.

Larry was born in London and was a former member of the Parachute Regiment. He was famous as Mr. Mash in the BBC comedy series Are You Being Served, appearing in the first three series before being replaced by Arthur English. He was unable to continue in this role because he was committed to the television series Spring and Autumn with Jimmy Jewel. Other TV appearances included Dads Army, On the Buses, Look Mike Yarwood!, Rising Damp, The Detectives and Grange Hill. He also played alongside Frankie Howerd in two of his BBC shows, Up Pompeii! and Whoops Baghdad.

Source: Wikipedia