Gary directed the hugely successful Menopause the Musical with two companies currently touring. He was Associate Director for the Australian/Asian production of Mamma Mia. He directed Carousel starring David Campbell for The Production Company at the State Theatre. He has also directed Funny Girl and Call Me Madam for them. He directed the new musical Crusade for the Edinburgh Festival and Guys and Dolls at the Adelaide Festival Theatre. For the Canterbury Opera, NZ, he directed A Little Night Music.

He has had a varied career as performer, writer and director and has worked all over the world in theatre, cabaret and television with the Mo award winning Ritz Company. Theatre productions include Side by Side by Sondheim, Starting Here, Starting Now, Showboat, Annie Get Your Gun, Jesus Christ Superstar, and Les Miserables.

He was Resident Director for the Australian productions of Miss Saigon and Les Miserobles for the Cameron Mackintosh Organisation, Aspects of Love for the Really Useful Company, Scrooge with Keith Michell at the Princess Theatre, Tales of Hoffmann and The Student Prince for the Victoria State Opera He was Associate Director for the 10th Anniversary Production of Les Miserables and directed the Australian premier of Crusade.

Original written work includes lyrics and book with co-writer and composer Tony Rees for Tilly, presented at the Buxton Musical Quest in Britain and their project Jekyll, season staged at the Churchill Theatre, Britain, starring Dave Willets. He has also written several theatre in education pieces.

Current works with composer Paul Keelan include Ship Of Fools, showcased at Chapel Off Chapel Theatre, A Woman's Eyes, Black Widow and Tea With Oscar which was nominated for the Greenl Room Award for music and lyrics and ran for two successful seasons at the Chapel Off Chapel Theatre. Their musical Sideshow Alley won the National search for new work by Australian writers and composers, winning the prestigious Pratt Music Theatre Prize. It is the first work to be developed through the Pratt Foundation and was workshopped in August, 2003 and headed to production in 2006. Their latest work is an opera based on the life of the Italian painter Artemisia Gentileschi.