Warren Clarke (born 26 April 1947) is an English actor.

Clarke was born in Oldham, Lancashire. His first television appearance was in the long running Granada soap opera Coronation Street, initially as Kenny Pickup in 1966 and then as Gary Bailey in 1968. His first major film appearance was in Stanley Kubrick's controversial A Clockwork Orange (1971) where he played a 'Droog' named 'Dim'. He appeared with McDowell again in the 1973 film O Lucky Man.

He has appeared in a wide range of roles in TV and movie productions both in the UK and abroad. One of his most notable roles was playing a Russian dissident in Clint Eastwood's Firefox (1982). Seen mostly in serious roles, his comedic talents can be seen in Blackadder: The Cavalier Years, playing Oliver Cromwell. In 1984 he played the uncharacteristic role of the overtly homosexual 'Sophie' Dixon in the landmark Granada series The Jewel in the Crown. Also in 1984 he had another comedic role, playing Colonel von Horst in the satirical Top Secret!. In 1988 he appeared as Colonel Krieger in the first series of LWT's Wish Me Luck. In 1989 he played the Captain Lee in the film Crusoe. The same year he played the role of Martin Fisher, the chairman of a football club, in The Manageress. He starred in a cameo as a sophisticated bin man in the episode entitled Bin diving in the second series of the television series Lovejoy aired in 1991. In 1994 he played Bamber in the ITV comedy drama Moving Story.

Since 1996 he has appeared regularly as Detective Superintendent Andy Dalziel in the TV series Dalziel and Pascoe.

Between 2000 and 2003 Clarke played Brian Addis, a father who moved his family from the bustle of London to a Devon farm, in the BBC TV series Down to Earth.

In 2005 he appeared as Mr Boythorn in the BBC One dramatisation of Bleak House.

In 2008 he starred alongside Anthony Head in the BBC Drama The Invisibles and in 2009 appeared in the Channel 4 trilogy Red Riding.

In 2009 he appeared as Commander Peters in the ITV production of Agatha Christie’s Why Didn't They Ask Evans?.

In 2010 he starred in Series 3, Episode 2 of the BBC series Inspector George Gently. The episode was entitled "Peace and Love." He also played Mr Bott in the Just William series