Sam Callis was born 29 May, 1973 in Chichester, West Sussex. He is a British actor who has been in Doctor Who, Ultimate Force, Holby City, and The Royal. He is best known for his roles in London's Burning as firefighter Adam Benjamin between Series 13 (2001) and Series 14 (2002) and The Bill as Sergeant Callum Stone between 2007 and 2010. He also played a priest and the son of villain Irene Radford; Karl Radford in 2004.