Rudolph Malcolm Walker CBE (born 28 September 1939) is a Trinidadian-British actor, best known for his sitcom roles as Bill Reynolds in Love Thy Neighbour (1972–76), Constable Frank Gladstone in The Thin Blue Line (1995–96) and since 2001 as Patrick Trueman in the BBC soap opera EastEnders. In 2009, the Rudolph Walker Foundation was established to provide inspirational role models and positive activities that empower young people to overcome the obstacles and build positive futures.