Patrick George Troughton (25 March 1920 – 28 March 1987) was an English actor known in his role as the second incarnation of the Doctor in the long running British science-fiction television series Doctor Who, which he played from 1966 until 1969.

Patrick Troughton was born in Mill Hill, London and was educated at Mill Hill School. He trained as an actor at the Embassy School of Acting in the UK and at Leighton Rollin's Studio for for Actors at Long Island, New York in the USA. During World War II he served in the Royal Navy and after the war ended he joined the Old Vic and became a Shakespearean actor. He won his most famous role as the second Doctor in "Doctor Who" (1963), in 1966 and played the role for three years. His hobbies included golf, sailing and fishing. He was a father of six (David, Jane, Joanna, Mark, Michael and Peter), a stepfather to Gill and Graham and a grandfather to Harry Melling, Jamie and Sam Troughton.

Patrick Troughton was born on 25 March 1920 and grew up in North London, where he was educated at Mill Hill Public School. In his teens he attended the Embassy School of Acting at Swiss Cottage, under Eileen Thorndike. From there he won a scholarship to the Leighton Rallius Studios at the John Drew Memorial Theatre on Long Island in New York, USA. When the Second World War broke out, he returned to Britain on a Belgian ship. Just in sight of the coast it hit a mine and sank, but Troughton was fortunate enough to escape in a life boat. In 1939 he joined the Tonbridge Repertory Company before joining the Royal Navy in 1940, rising through the ranks to attain the captaincy of a motor gunboat on duty in the North Sea. When he was demobbed in 1945 he returned to the theatre, working with the Amersham Repertory Company, the Bristol Old Vic Company and the Pilgrim Players at the Mercury Theatre in Nottingham. He first broke into television, always to remain his favourite medium, in 1947. Notably early work included parts in "Robin Hood" (BBC 1953, title role), "The Adventures of Robin Hood" (ITC 1957, 1959), "Paul of Tarsus" (BBC 1960), title role), "Dr. Finlay's Casebook" (BBC 1962, semi-regular) and, perhaps best remembered of all, "The Old Curiosity Shop" (BBC 1962, as Quilp). His cinema debut came in 1948, with small roles in "Hamlet" and the TCF production "Escape" (one of the stars of which was William Hartnell). Patrick Troughton is best known for his portrayal of The Doctor in "Doctor Who" (1963), in (1966-69) replacing William Hartnell.