Colin has worked in various television productions, including Russell Howard's Good News, Al Murray's Multiple Personality Disorder, Angelo's, Edinburgh and Beyond, Comedy Shuffle, The Charlotte Church Show, and Harry Hill's TV Burp. Hoult had a recurring role in series 5 of Being Human in 2013. In the same year, he appeared as a life coach in the BBC's Life's Too Short, starring Warwick Davis, a show written by Ricky Gervais and Stephen Merchant. Hoult is known for his collaborations with Gervais, appearing on Derek as Geoff in 2014 and as Ken Otley in After Life, 2020. In 2019, Hoult began appearing in the CBBC series Almost Never, in the recurring role of AJ. Hoult's radio work includes House on Fire, Out to Lunch, Rudy's Rare Records, Agatha Christie's Crooked House ), Colin and Fergus's Digi Radio, Buy Me Up, Regressed, 28 Acts in 28 Minutes, The Milk Run, Nick Mohammed in Bits, and Colin Hoult's Carnival of Monsters. Theatre credits include , and Zimbani with David James McNeil and Claire Warde. Hoult is a regular performer on the London comedy circuit with actor/stand-up comic Fergus Craig in the double act Colin and Fergus. They performed three shows at the Edinburgh Festival Fringe between 2004 and 2006: Colin & Fergus, Colin & Fergus 2, and Rutherford Lodge. In 2004, they won the Writers Guild Award for Comedy at the festival. Hoult performed his own show, Carnival of Monsters, at the 2009 Edinburgh Festival. The show was directed by Stephen Evans and also featured Evans, Zoe Gardner, and Dan Snelgrove. He returned to the Edinburgh Fringe Festival in 2010 for his second solo show, Enemy of the World, using the same actors and production team as the previous year. At the 2011 Edinburgh Festival, Coult performed his third solo outing, Inferno. This show featured Gardner and Snelgrove and was directed by Kat Hoult. In 2015, Hoult appeared as various characters in ITV2's sketch/prank show Glitchy. Hoult returned to the Edinburgh Fringe as his character Anna Mann in 2016 and 2017. Both shows were critically acclaimed and listed among the best-reviewed comedy shows at the Fringe by British Comedy Guide
