Peter Alexander Beckett (30 June 1982 – 10 April 2018) was a British actor.

He was best known for his role in the BBC TV comedy series Twenty Twelve and its follow-up W1A.

He played many theatre roles, including Higgins in Pygmalion in 2017, and several characters, including Fidel Castro, in the 2013 musical hybrid production of the Neon Neon album Praxis Makes Perfect.

[3] Beckett died at his home in South Norwood, London, on 10 April 2018, aged 35, in what was ruled by the coroner to be suicide by hanging; it was noted that, at the time of his death, Beckett had been suffering from depression for almost a year.

[4] Director Josie Rourke dedicated Mary Queen of Scots to Beckett's memory.