Thomas Stewart Baker (born 20 January 1934) is an English actor and writer. He is well known for his portrayal of the fourth incarnation of the Doctor in the science fiction television series Doctor Who from 1974 to 1981.
Later in his career, Baker performed in the television series Medics (1992–1995), Randall & Hopkirk (Deceased) (2000–2001) and Monarch of the Glen (2004–2005). He also provided narration for the television comedy series Little Britain (2003–2006) and Little Britain USA (2008). His voice, which has been described as "sonorous", was voted the fourth-most recognisable in the UK in 2006.
Baker is cynical of religion and describes himself as irreligious, or occasionally as Buddhist, but not anti-religious. Politically, Baker has expressed disdain for the Conservative Party and New Labour, saying in 1998, "when the Conservatives were in I cannot tell you how much I hated them, but I realise how shallow I am because I now hate the Labour Party as much."