Lewis Greifer

Lewis Greifer was a writer for television, film, and radio, bets know to Doctor Who fans as the writer of the initial draft of the 1975 Tom Baker story, Pyramids of Mars. The script had to be radically rewritten by script-editor Robert Holmes, who decided to use the pseudonym Stephen Harris 

After wartime service in the RAF, he pursued a career in journalism and joined the London Evening Standard. He contributed sketches for radio, including The Goon Show amongst others. 

A strong record on television writing in the 1950s and 1960s made his career; and by 1969 he diversified somewhat and devised the panel game show Whodunnit! for the BBC (which was later reformatted and remade by Thames Television as a vehicle for Jon Pertwee).

Lewis Greifer also wrote episodes of The Prisoner, Crossroads.