After graduating, he remained to direct the year-end tour, and did some screenwriting on the side, before embarking on a comedy career.

[10] His credits include Constable Twitten in the BBC Radio 4 comedy series Inspector Steine and as Apsley Cherry-Garrard in the BBC Radio 4 classic serial The Worst Journey in the World.

[11] Matt has also appeared in other BBC Radio 4 programmes: Cabin Pressure, Ed Reardon's Week, The Afternoon Play: Man of Steel, The Time Being: Autarky,[12] and High Table, Lower Orders.

[13] He has also appeared in Fresh Meat, Cradle To Grave, Casualty, Comedy Showcase (episode: "Other People"), Extras, EastEnders, Comedy Lab (episode: "Speeding"), Footballers' Wives, Garth Marenghi's Darkplace, Two Pints of Lager and a Packet of Crisps and Late Night Mash.

[2] Green is the co-creator and co-writer (alongside Robin French and Kieron Quirke) of the pilot for the ABC Family sitcom Roommates.