Capron first came to public attention through his role of the Teacher, Mr Stuart (Hoppy) Hopwood in Grange Hill in the early 1980s. He also acted in BBC soap opera EastEnders, playing Jerry McKenzie from 1993-1994. He played the guest role of Andrew Donelson in Taggart in the episode "A Fistful of Chips" in 1999.
He was cast as George Godley in Jack the Ripper (1988), with Barry Foster as Inspector Frederick Abberline, and the two started filming in October 1987. It was later decided to recast with Michael Caine as Abberline and Lewis Collins as Godley in order to attract larger audiences in the United States.
His feature film appearances are rare but have included roles in Emma (1996), 101 Dalmatians (1996), Still Crazy (1998) and Ambleton Delight (2009).
He is probably best known for his role as serial killer Richard Hillman in the television soap opera Coronation Street from 2001 to 2003. He had previously appeared in the series as the social worker Donald Worthington in 1981-82.
In 2007, Capron played Nathan Detroit on the Guys and Dolls tour, opposite Claire Sweeney. In September 2007, Capron was announced as one of the contestants to take part in the fifth series of Strictly Come Dancing. He was partnered by Karen Hardy, who was Series 4 champion with cricketer Mark Ramprakash. After finishing in last place on the first show, he found himself in the dance off along with Kenny Logan, but the judges voted in favour of saving Logan and Capron left the show.
In April 2010, Capron appeared on ITV Show This Morning along with fellow cast member of Stepping Out, Anita Harris and they showed presenters Phillip Schofield and Ruth Langsford how to tap dance.
