Jason appeared as Stephen Snow in the ITV drama series Where The Heart Is, taking over the part in series 3 from william Ash, in 1999. Stephen Snow was the son of Peggy Snow (Pam Ferris) and Vic Snow (Tony Haygarth). Jason portrayed Stephen throughout series 3 & 4 & part of series 5, during which the character left the fictional town of Skelthwaite.
On 9 March 2006, Done began appearing as schoolteacher, Tom Clarkson in the successful BBC One drama series, Waterloo Road. On 10 April 2013, it was announced that Done would be leaving his role as Tom after seven years and eight series. Tom left the series in the final episode of the eighth series, on 4 July 2013, in a shock twist which saw Tom fall from the school roof after helping troubled pupil, Kyle Stack (George Sampson) from committing suicide. Done is the second longest serving cast member.
Done narrated the BBC Three documentary series Junior Doctors: Your Life in Their Hands, its 2014 spin-off Junior Paramedics, the BBC TV series Hair, the BBC series Emergency Rescue Down Under and the Channel 5 documentaries Can't Pay We'll Take It Away and Inside Kings Cross: The Railway, along with Ice Lake Rebels & the UK narration to Monsters Inside Me.
In May 2014, Done appeared as Andrew Wendell in Casualty and in October 2014 as Paul Brightway in the story "The Lions of Nemea", part of series 8 of the ITV drama series Lewis. He also started in Closets, a short film. On 7 February 2016, Done appeared in the TV series Vera. In 2016, he appeared in the ITV/Netflix series Paranoid. Coronation Street 2017