Marks was born as Ruchel Kutchinsky in Holborn, London. He left Bell Lane School at 14 and started in entertainment at the Windmill Theatre. He then served in the RAF as a Flight Sergeant in the Middle East where he arranged concerts for servicemen. He also worked as an auctioneer and engineer. He started in variety at the Kilburn Empire in 1946, and his stage appearances included The Sunshine Boys and Fiddler on the Roof. He also did comedy work with Peter Sellers and Harry Secombe which later led to the formation (along with writer Spike Milligan) of The Goon Show, though Marks himself was not to become a member of that comedy group His films included The Frightened City, Scream and Scream Again and Our Miss Fred. His television show, Alfred Marks Time, ran for 6 years on ITV. He compered Sunday Night at the London Palladium and appeared in numerous other television programmes including The Good Old Days, The Sweeney, Blankety Blank, The Marti Caine Show, The Two Ronnies, The Generation Game, Lovejoy, Minder, Parkinson, The All New Alexei Sayle Show, and others. In 1967 Marks toured Australia for J.C. Williamson Theatres in Bill Naughton’s Spring & Port Wine. In 1968 he played the lead in The Young Visiters a musical version of the turn of the 20th century Daisy Ashford novel (written when she was nine and published as submitted by her with the spelling errors) at the Vaudeville Theatre in London.He was the subject of This Is Your Life in December 1971 when he was surprised by Eamonn Andrews at London’s Garrick Theatre. He was a fine bass-baritone and appeared regularly on the BBC TV series ‘The Good Old Days’. One of his most memorable renditions was of Kipling’s ‘The Road to Mandalay’, in the version made famous by Peter Dawson. He appeared as “Wilfred Shadbolt” in a video production of the Gilbert and Sullivan opera The Yeomen of the Guard in 1982. Marks married actress Paddie O’Neil in 1952. They remained together until his death. The couple had two children, Gareth (also an actor), and Danielle.