Simon’s stage productions include The 39 Steps at the Criterion directed by Maria Aitken, Don’t Look Back at the Hammersmith Lyric directed by Lucy Bailey, The Philanthropist at the Donmar directed by David Grindley, Twelfth Night at Regent’s Park directed by Tim Sheader, and Anything Goes at Drury Lane directed by Trevor Nunn. His work for television includes Midsomer Murders, The Relief of Belsen, Hotel Babylon, and Doctor Who. For film he has played roles in Flawless, Spartacus and Churchill: the Hollywood Years.