He attended the Littlehampton Community School and Chichester College, He joined the National Youth Theatre aged 16 and performed with the company until he was 18.
In 2006, he made a brief appearance in the Nickelodeon show Genie in the House and did voice work for the acclaimed film The History Boys.
He has also guest starred in episodes of Waking the Dead for the BBC and ITV's Trial & Retribution.
He returned to the stage in 2012 at the Southwark Playhouse in the latest play by Philip Ridley, Shivered.
[1] Jarvis met Evanna Lynch while filming Harry Potter and the Order of the Phoenix in 2006.