Dean John-Wilson was first brought to the public's attention when he reached the semi-finals of Britain's Got Talent in 2008.
Dean's theatre credits include: The Dreamers (Abbey Road Studios), Lun Tha in The King and I (London Palladium), Aladdin in Aladdin (Prince Edward, West End London), Miss Atomic Bomb (St James' Theatre), Songs For A New World (St James' Theatre), Here Lies Love (National Theatre), From Here to Eternity (Shaftesbury Theatre), BARE (Union Theatre), Sister Act (UK Tour).
He could most recently be seen onstage at the Edinburgh Fringe, playing Greg McConnell in Cruel Intentions: The 90s Musical.
Dean also starred in Jean-Claude Van Damme film We Die Young, in the role of Mousy, which was released in March 2019.
Dean appeared in BYMT's 2004 production of Red Hunter.