Percy Marmont

Percy Marmont (25 November 1883 – 3 March 1977) was an English film actor.

Secret Agent
Young and Innocent
Alfred Hitchcock's: Rich and Strange
Alfred Hitchcock's: Secret Agent

Colonel March of Scotland Yard · S1, E12

Death And The Other Monkey

A scientist conducting cancer research is convinced that his test monkey was not only stolen but replaced. He is later found dead from gas, and Colonel March must prove if it was suicide or not.