Tomm trained at Hull University and Royal Welsh College of Music and Drama. His theatre work includes: Sweet Charity (Belfast MAC) Rosencrantz & Guildenstern are Dead (Chichester Festival Theatre and Theatre Royal Haymarket, West End), The Human Comedy (Young Vic, London), Death of a Salesman (West Yorkshire Playhouse), The Secret Garden (Edinburgh Festival Theatre and Toronto), Sunset Boulevard (Comedy Theatre, West End and Watermill Theatre), Fiddler on the Roof (Savoy Theatre, West End, Sheffield Crucible and London Cast Recording), Mack and Mabel (Criterion, West End and Watermill Theatre), Romeo and Juliet (Clwyd Theatr Cymru), James and the Giant Peach (Watermill Theatre), Animal Farm (West Yorkshire Playhouse), Sleeping Beauty (Birmingham Rep), The Comedy of Errors (Stafford Shakespeare Festival), Silence (Sherman Theatre, Cardiff), Sugar (Ipswich New Wolsey / Clywyd Theatr Cymru), and Femme Fatale (Croydon Warehouse). Film work includes: Gullivers’ Travels (Fox UK) and The Muppets…Again! (Disney).