Henry trained at LAMDA.
He is best known for his work with the highly renowned Mischief Theatre Company, co-writing and appearing in their hit international productions of; THE PLAY THAT GOES WRONG (winner 2015 Olivier Award and WhatsOnStage Award for Best New Comedy), PETER PAN GOES WRONG, (writer/actor, 2016 Olivier Award nominee for Best New Comedy), THE COMEDY ABOUT A BANK ROBBERY (actor/writer, 2017 Olivier Award nominee Best New Comedy); MISCHIEF MOVIE NIGHT(actor, 2018 Olivier Award nominee for Best New Comedy), THE NATIVITY GOES WRONG (writer) and MISCHIEF MOVIE NIGHT (UK Tour, 2018).
Henry has appeared on screen in numerous television shows including for the BBC; HOLBY CITY, PETER PAN GOES WRONG, A CHRISTMAS CAROL GOES WRONG and, for ITV, KEEP IT IN THE FAMILY.
Following the success of these productions, the BBC has commissioned a primetime spin-off Mischief Theatre series co-written and starring Henry; THE GOES WRONG SHOW airing Autumn 2019 on BBC ONE. Also this Autumn Henry co-writes and will appear in a brand new Mischief Theatre production of GROAN UPS at the Vaudeville Theatre West End, directly followed by a collaboration with the internationally renowned Penn & Teller in MAGIC GOES WRONG, also at the Vaudeville Theatre.