Born in Acocks Green, Birmingham, he started his own folk club at 16 called "The Boggery" in Solihull, where he would perform folk songs as well as MC. Before long, his banter with the audience overtook the actual songs and he became known more as a comedian than a singer. He had a surprise UK top 5 chart hit in 1975 with a novelty record called "Funky Moped". The B-Side to this single was an obscene monologue parodying the animated children's TV series The Magic Roundabout.
His break into television was with Carrott's Lib, a Saturday night comedy show broadcast live on the BBC. This was followed by a string of different shows, most notably Carrott's Commercial Breakdown, which broadcast weird and wonderful adverts from around the world, and the sketch and stand-up shows Carrott Confidential and Canned Carrott, both of which also gave TV exposure to the comedy partnership of Steve Punt and Hugh Dennis.
Canned Carrott also featured a regular police drama spoof called The Detectives, co-starring Robert Powell, which was spun off into its own series. He also starred in the sitcom All About Me.
He is part owner of the production company Celador, which makes Who Wants To Be A Millionaire?. His daughter, Lucy Davis, is an actress best known for playing Dawn in The Office.
He is a proud supporter and director of Birmingham City and was made an OBE in 2002. In 2007 he was added to the Birmingham Walk of Stars, an award presented to him by the Lord Mayor of Birmingham.