After graduating from the Liverpool Institute for Performing Arts (LIPA) in 1999, Oliver has worked as a bass player on many theatre productions. Shows include Our House (UK tour), Dream On (London Palladium), Dancing In The Streets (UK & European tour), Rocky Horror Show (UK tour & West End), Promises, Promises (Crucible Theatre, Sheffield), Hedwig And The Angry Inch (London), Fame (UK tour), Jesus Christ Superstar (Scandinavian tour), Footloose (UK tour), Summer Holiday (UK tour), Tonight (Oslo, with Norwegian Radio Orchestra), and Rent (London & UK tour).