Stephan comes from Hamburg in Germany and studied Drama at RADA and the Neighbourhood Playhouse School in New York.

Theatre productions include Golden October (Bridge Lane Theatre), Mother Courage (Chapter Arts Centre), Waiting For Godot (Sherman Theatre, Cardiff), The Bald Soprano (Sherman Theatre, Cardiff), Woyzeck (Reardon Smith Theatre), The Governess (Artaud Company, London), Tobacco Peril (Artaud Company, London), Kafka's The Castle (Cherub Theatre Company, Edinburgh Festival), Diary Of A Madman (Arts Centre, Exeter), Berlin Berlin and Dominique (Triangle Company, Cardiff).

Film and TV credits include Two Men Went To War, Doomsday Gun (HBO), The Wanderer (Sky TV), Backbeat, Splitting Heirs, Red Dwarf 2 (BBC), Inspector Morse, Capital City, The Bill, The March (BBC), Making News (Thames) and Goldeneye: The Secret Life of Ian Fleming (Anglia), Mosley, Saving Private Ryan, The Bill.

He has experience in all aspects of recording work and has played numerous parts in computer games such as OutRun 2 and title roles in Metalgear Solid and Shadowman. He has made recordings for numerous publishing houses such as Linguaphone, Oxford University Press, Cambridge University, Longman Group, John Murrey and MacMillan.

ADR work includes productions like Young Indiana, Women at War, Nightmare Years, Muzzy in Gondoland (BBC cartoon), Burning Secrets and The Luconda Affair.

Stephan is also fluent in French.