In 2008, Roberts played the Roman poet Ovid in the play "The Art of Love" alongside Adèle Anderson of Fascinating Aïda in London, the lead role in Richard O'Brien's "Mephistopheles Smith: the Evangelist from Hell" at the Edinburgh Festival Fringe in 2007, 16 characters in a two-hour workshop of "The Unimportant History of Britain" in London in 2008. Also in 2008, Roberts was asked by Paul Nicholas to play John Barsad in a new musical adaptation of A Tale of Two Cities at the Gatehouse Theatre, London, and was offered the lead in "Gold", a fringe musical based on old school friends getting their school band back together after twenty-five years apart.