Theatre includes Black Stache in European Premiere of Peter and the Starcatcher, A Christmas Carol (Royal & Derngate Northampton); Edward Kynaston in Nell Gwynn (Shakespeare's Globe and West End); Richard II (Shakespeare's Globe); The 39 Steps (West End); Lysistrata, and Costard in Love's Labour's Lost (Peter Hall/Rose Theatre Kingston); Relatively Speaking, Black Comedy (Watermill Theatre Newbury); The Missionary's Position (Penny Dreadful); Low Pay? Don't Pay! (Salisbury Playhouse); The Play What I Wrote (national tour); Henry IV Parts 1&2 (Orange Tree Theatre Richmond); The Tempest (Southwark Playhouse); All in the Timing (Peepolykus); F The Madness of George III, The Accrington Pals, Marcellus/Player Queen in Hamlet, Rosencrantz and Guildenstern Are Dead and The Lady in the Van (West Yorkshire Playhouse); Europe and Away (Traverse Theatre Company); Services (Gate Theatre Company)
He is a regular director, writer and actor for Scene and Heard, a charity mentoring project which won the Queen's Award for Voluntary Service.
Greg performs in the award-winning comedy double act Haiste and Lawrence.
Television includes Home Fires, Touch Me I'm Karen Taylor, Emmerdale, Jane Hall, Heartbeat, See How They Run, True Crimes.
Radio includes Doctor Who: Doorways in the Darkness, Fags Mags and Bags, The Nothing To Do With Anything Show. Films include The Current War, The Time of Their Lives, Starfish and the shorts Social Networking Socially: Society Through Technology, Ken Loach's Star Wars, Wipeout, Les Chuckle Brothers, Jeff and Caroline.