Gareth trained at the Guildhall School of Music and Drama, and graduated with a Masters in Film Studies from the University of Southampton.

His recent theatre credits include: Great Expectations (Mercury Theatre); Othello (National Theatre); Trouble in Butetown (Donmar Warehouse); The Corn is Green (National Theatre).

His film credits include: My Policeman (Dir. Michael Grandage).

Gareth has recently filmed an episode of an ITV Drama.