Ryan Sampson played Luke Rattigan in the Doctor Who television stories The Sontaran Stratagem and The Poison Sky.
He also voiced Brother Patrick and Brother Timothy in the Big Finish Doctor Who audio story The Book of Kells, Father Thane in The Elite, Lenny Kruger in 1963: Fanfare for the Common Men, Ivan Putin in The Torchwood Archive, and Mr Nichols in Visiting Hours.