Smart performed as a guest with The Comedy Store Players for over 13 years, and a permanent member from 1995.

Together they won the 1984 Time Out Street Entertainer Award and later appeared on LWT's Wake Up London and Channel 4's The Tube, where, dressed as a bell boy and pretending to be a Great Dane, Smart licked Paula Yates' face.Smart presented American Football on Channel 4 in 1987 alongside Abela.

[1] On The Graham Norton Show, Martin Freeman once mentioned that Smart saved him from choking on crisps using the Heimlich manoeuvre.

[2] He released a book about his life and career, A Hitch in Time: From Liverpool to Pamplona on a 72,000-Mile Road Trip, in 2019.

[3] Smart had a daughter, Grace (born 1993), a set designer, with actress and playwright Victoria Willing, and a son, Joe.