Oliver is currently appearing in Avenue Q at the Shaftesbury Theatre the West End production of The Choir of Man at The Arts Theatre.

Prior to this he was part of the UK tour of the Olivier Award-winning Best Musical, Come From Away.

Further theatre credits include:Standby Elder Cunningham in the London cast of THE BOOK OF MORMON (The Prince of Wales Theatre); Nicely Nicely Johnson in GUYS AND DOLLS (The Mill, Sonning); Roger in GREASE – UK National Tour (David Ian Productions); Marvin Columbus (Lead) COLUMBUS THE MUSICAL (Royal Caribbean); Vicar/Ensemble in SPEND SPEND SPEND (The Union Theatre); Barnaby in THE BAKERS WIFE (MKEC Productions); Singer in TIME AND MUSIC (Rapture House Theatre Company); Warren in ORDINARY DAYS (Top Note Arts); Rhodri in STOP THE TRAIN (Ribcaged Productions) and Ensemble/Male Swing in LITTLE SHOP OF HORRORS