Slim began to rise in the ranks as a stand-up comedian after winning the Best Male category at the 2004 Black Entertainment Comedy Awards. The following year, he was even named Favourite Comedian by other Black British comics. Mo Gilligan has often cited Slim as the person who inspired him most early on in his career.
In 2005, he also became the first Black UK comic to perform at the world-famous Comedy Store in West Hollywood.
During his career Slim has been the tour support for Kevin Hart and Dave Chappelle.
As seen on The Russell Howard Hour (Sky One), Mo Gilligan: Black, British And Funny and The Steph Show (channel 4).