Gavin trained at the Tiffany Stage Academy and Performers College, Essex. Theatre credits include: Of Thee I Sing (Royal Festival Hall), Dirty Rotten Scoundrels (Savoy Theatre), Wag! The Musical (Charing Cross Theatre), Sister Act (UK Tour), Hairspray (Shaftesbury Theatre), Footloose (Novello Theatre), Fame (Aldwych Theatre), Saturday Night Fever (UK Tour), Mamma Mia (Prince Edward Theatre), Oliver! (London Palladium). Television credits include: Hall of Fame for Barbara Windsor (BBC), Hidden Talents of the Rich and Famous 2 (LWT), Barrymore (LWT), Blue Peter Pantomime (BBC), Royal Variety Show (ITV). Workshops include: Lend Me A Tenor for Ian Talbot.