Born in the
London Borough of Newham on 5 March 1989, Smith-Bynoe attended
St Bonaventure's, an all-boys secondary school in
Forest Gate. He trained in the
Joan Littlewood improvisation style as part of the junior group at
Theatre Royal Stratford East and similarly as an adult at the
East 15 Acting School. He is still part of improv comedy troupes such as BattleActs with whom he has performed at festivals including the
Edinburgh Festival. One of Smith-Bynoe's early acting roles was in 2012 in the
YouTube web series Diary of a Bad Man as a gangster called Klayze, and his first professional role was in the 2012 crime drama series
Whitechapel. He was previously known for the
novelty grime hit "Junior Spesh" under the name MC Klayze Flaymz. In 2021, Smith-Bynoe appeared in the first series of the radio comedy series
Michael Spicer: Before Next Door, playing various characters, including the titular character’s boss. From 2019 to 2023, he appeared in BBC's hit sitcom
Ghosts as Mike Cooper. He appeared on the 2021 BBC Christmas special of
The Great British Sewing Bee. In April 2022, Smith-Bynoe popularised the term "Platty Joobs" as a nickname for the
Platinum Jubilee of Elizabeth II, having been the first to use the phrase on
Twitter. On 6 May 2022, his Channel 4 Comedy Blap (short form presentation)
Red Flag was released. He was a contestant in Series 15 of
Taskmaster broadcast in 2023, finishing as runner-up. He returned for the "Champion of Champions" special in 2024, filling in for Series 15 winner
Mae Martin, who had a scheduling conflict. In October 2023, it was announced that he would host the 2023 Christmas special edition of
The Great British Sewing Bee and that he would also host the programme's tenth series in 2024. In September and October 2024, Smith-Bynoe was a guest panellist in two episodes of series 93 of the
BBC Radio 4 comedy game show
Just a Minute. ==Personal life==