From 2007 to 2008 he was seen on stage at the Theatre Royal, Drury Lane, first playing various ensemble roles and then taking over the part of Frodo Baggins in Matthew Warchus' theatrical adaption of The Lord of the Rings.
In 2008-09 Byng appeared in the role of John Darling in the musical Peter Pan at the West Yorkshire Playhouse in Leeds.
He just finished a tour with the West Yorkshire Playhouse production of The History Boys by Alan Bennet, in which he played Posner.
After performing in Secret Cinema - Back to the Future he can currently be seen in The Grimm Tales at The Bargehouse at Oxo Tower Wharf.
He also played wayward American Montague Bear in the independent film Rupert Brockstein's Blood Red Letters.