[1] Masson and Cumming wrote The High Life, a Scottish situation comedy in which they play the lead characters, Steve McCracken and Sebastian Flight.
He played Stan Laurel in the episode "Meltdown" of the sitcom Red Dwarf,[2] Eck in the 1992 comedy series My Dead Dad, Rodney Morris in EastEnders (2000), Tam Flood in Hamish Macbeth (1996) as well as various roles in Is It Bill Bailey?
[6] Other theatre includes: The Breathing House (Gilbert) by Peter Arnott; Art (Yvan) by Yasmina Reza, directed by Kenny Ireland; Stiff!
(George Mathieson), directed by Caroline Hall; Much Ado About Nothing (Benedick), his first professional Shakespearean role; at the Royal Lyceum Theatre, Edinburgh (1997).
[13] Endgame by Samuel Beckett (Clov), The Trick is to Keep Breathing by Janice Galloway(Dr Green), Dumbstruck by David Kane (Herman Katz), The Real Wurld by Michel Tremblay (Claude), all directed by Michael Boyd Cinzano by Lyudmila Petrushevskaya (Pasha) (directed by Roman Kozak): Tron Theatre Glasgow.
The Lion, the Witch and the Wardrobe (Mr. Tumnus) at Threesixty Theatre in Kensington Gardens, directed by Rupert Goold and Michael Fentiman, music by Adam Cork.
He worked with James McAvoy again, playing a total of seven different characters, in the revival of Peter Barnes's The Ruling Class directed by Jamie Lloyd for Trafalgar Transformed in early 2015.
In September 2015, he starred alongside Simon Russell Beale, playing John Hunter in Ian Kelly's "Mr Foote's Other Leg", at the Hampstead Theatre.
He played Lucifer to Kit Harington's Faustus and Jenna Russell's Mephistopheles in Jamie Lloyd's production of Christopher Marlowe's Doctor Faustus at the Duke of York's Theatre, London In the summer of 2016, he played Peter Quince with Phill Jupitus as Bottom in Laurence Boswell's production of William Shakespeare's A Midsummer Night's Dream at Theatre Royal, Bath.
He played King Cunobeline alongside Gina McKee in Tristan Bernays' Boudica at Shakespeare's Globe Theatre, directed by Eleanor Rhode in Autumn 2017 He appeared with Kelsey Grammer, as Circus Owner, Amos Calloway and various other comic characters in Nigel Harman's production of Andrew Lippa and John August's musical Big Fish at The Other Palace, in Dec 2017 In early 2018 he played both Dr John Buchanan Snr.
and Rev Winemillar in Rebecca Frecknall's critically acclaimed production of Tennessee Williams' Summer and Smoke at the Almeida Theatre, Islington In the summer of 2018 he played flower shop owner, Mr Mushnik, alongside Marc Antolin, Jemima Rooper, Matt Willis and Vicky Vox in Maria Aberg's five star revival of Alan Menken and Howard Ashman's musical Little Shop of Horrors at The Regent's Park Open Air Theatre.
[14] He has also worked with Gordon Dougall's Sounds of Progress music theatre company (renamed Limelight in 2010), promoting disability inclusion in the Arts.