[1] He was brought up in Salisbury, Wiltshire, attended St Probus school, where he took elocution lessons, and participated in local drama groups.

[3] One of Biggins' earliest roles was on Upstairs, Downstairs in Series 2, as the character Mr. Donaldson in the episode "An Object of Value" (1972).

[4] He appeared as the regular character Lukewarm in the situation comedy Porridge (1974–1977) starring Ronnie Barker.

[5] He appeared in the BBC's Poldark (1977) as the Reverend Osborne Whitworth, in Minder in the episode "The Bounty Hunter" (1979) and the TV miniseries Masada (1981).

[7] In 2013, he appeared on The Celebrity Chase, where he was the first person in the history of the show to answer all six questions correctly while going for a higher offer.

On 28 July 2016, Biggins entered the Celebrity Big Brother house to participate in its eighteenth series.

The show's producers stated that Biggins had made "a number of comments capable of causing great offence to housemates and the viewing public" with regard to antisemitic comments to his fellow housemates, as well as his view of bisexuals, whom he described as the "worst type" and blamed for the spread of HIV/AIDS.

[13] Biggins' theatre roles have included performances with the Royal Shakespeare Company,[14] playing Herod in Jesus Christ Superstar, and 18 months at the London Palladium in the stage adaptation of Chitty Chitty Bang Bang (where he was teamed in a double act with Louise Gold).

In 2010, Biggins appeared as a guest star narrator in The Rocky Horror Show at various theatre venues in the United Kingdom.

In December 2013, he was cast in the role of Dame Trot alongside Bob Carolgees in a production of Jack and the Beanstalk at New Theatre, Hull.

[citation needed] His film roles include The Sex Thief (1973), Eskimo Nell (1975), It Could Happen to You (1975), The Rocky Horror Picture Show (1975), Adventures of a Plumber's Mate (1978), Derek Jarman's The Tempest (1979), and "The Baker" in the 1999 film Joseph and the Amazing Technicolor Dreamcoat.

In 2008, he briefly co-presented a Sunday morning radio show on BBC London with Lesley Joseph.

In May 2017, he returned to BBC Radio 2 to cover for Paul O'Grady on his Sunday early evening programme.

[citation needed] Biggins hosts an annual show West End Live in London's Leicester Square.

[18] He later came out as gay and formed a civil partnership with his partner, Neil Sinclair, on 30 December 2006 at Hackney Register Office.