Karl Julian Theobald (born 5 August 1969 in Great Yarmouth) is an English comedian and actor, best known as Dr. Martin Dear in Channel 4 sitcom Green Wing, and for his physical comedy style.Theobald grew up in Lowestoft where he studied at The Denes High School around 1985 and went to dance school at an early age. He graduated from the Drama Centre London in 2000, to work with Theatre de Complicite.Theobald is the one-time comedy partner of Russell Brand; they formed a double act during the 1990s called Theobald and Brand on Ice. This has been mentioned by Brand on his BBC radio show and in his autobiography, My Booky Wook. A quote from Theobald was used among quotes from others in Brand's book:As well as appearing in Green Wing, Theobald has written comedy for the television programmes The Sketch Show and Smack the Pony. He also appeared in the radio sitcom The Exterminating Angels.In 2008, Theobald joined the cast of ITV science fiction series Primeval as Oliver Leek.Theobald appeared in the 2010 film Get Him to the Greek, alongside former partner Brand, playing his assistant.He has recently finished shooting the independent British feature film Downhill, which is a comedy about four men attempting Alfred Wainwright's Coast to Coast Walk. It will be released in 2013 and co-stars Ned Dennehy, Jeremy Swift and Richard Lumsden. The film is directed by James Rouse and the screenplay was written by Torben Betts.