During the 2007 tour of The Rocky Horror Show, Christopher played the Narrator in Torquay, Southend, Cambridge, Sheffield, Blackpool and Dunstable. He had previously appeared as one of the Transylvanians in the 1975 film version The Rocky Horror Picture Show.
Christopher was offered the role of the Tollmaster in the 1987 Doctor Who serial Delta And The Bannermen but his agent turned the part down. It subsequently went to Ken Dodd.
Christopher is godfather to the actress Summer Strallen.
In December 2006, Christopher entered into a civil partnership with Neil Twimaps.
Christopher attended St. Probus School, Salisbury, Wiltshire.
He was crowned King of the Jungle in the 2007 series of I'm a Celebrity....
Biggins is a Wolverhampton Wanderers fan.