Christopher Timothy is a Welsh actor, television director and writer. Timothy is possibly best known today for his role as Dr. Brendan 'Mac' McGuire in the British TV drama Doctors. He also played James Herriot in All Creatures Great and Small.

He was born in Bala, Gwynedd, Wales, and lived in the town up to the age of five, when his parents moved to London. He attended the the Priory Grammar School in Shrewsbury in the 1950s, appearing in a number of school plays.

On leaving school he worked at Frank Newton's Gentleman's Outfitters in Shrewsbury - now the location of Marks & Spencers in the town. After appearing in the film Here We Go Round the Mulberry Bush, Timothy's TV career started with the 1969 series Take Three Girls.

He went on to appear in Some Mothers Do 'Ave 'Em in 1973 and Murder Most English: A Flaxborough Chronicle in 1977 before winning the role of Herriot. He played the role from 1978 until 1980 and again between 1988 and 1990.

In 1980 he played Jesus Christ in the York Mystery Plays. In 2000 he was cast as Dr. Brendan "Mac" McGuire in the TV series Doctors staying with the show for six years, directing some of the episodes, and leaving in May 2006. In 2005 he made an appearance in Casualty as the murderer of long-standing character Finlay Newton.

He is the son of BBC announcer Andrew Timothy, and has done regular voice work himself including taking his father's place as the Announcer for the Goon Again Show in 2001 marking the 50th anniversary of the Goon Show (Andrew had been the Original Announcer for the show back in the early 1950s).

He played the Announcer role on the Kinks' 1974 double album, "Preservation Act 2". He voiced numerous commercials for the Sun newspaper and has also read Herriot's works for CD release.