Curtis Walker started in comedy in the later Eighties, as half of the double act Curtis & Ishmail, alongside a comic called Ishmael Thomas. The pair hosted the second series of the BBC stand-up show Paramount City in 1991 (the first had been hosted by Arthur Smith).

He was also in the cast of BBC 2’s black sketch show The Real McCoy, which started in the same year, amd co-hosted Blouse And Skirt with Gina Yashere in 1996.

Walker was the voice of Carlton in the CBBC’s children's comedy series Kerching, has appeared in Rob Brydon's Annually Retentive, the Lenny Henry Show and Ed Stone is Dead and has a role in the 2007 film Mutant Chronicles.

As a stand-up, he is a regular on the Jongleurs circuit and has a one-man show entitled Right Now. He has been named best male stand-up from Black Issues In Community Arts and won the awkwardly named Top Carlton TV Multicultural Entertainment & Comedy Award.