After The Inbetweeners concluded, Thomas remained connected to Channel 4, joining the cast of comedy-drama series Fresh Meat in 2011, portraying the role of Kingsley Owen until 2016.
He was reunited with his The Inbetweeners colleague James Buckley when they both joined the cast of BBC Two sitcom White Gold, with Thomas portraying the role of Martin Lavender.
Together with Bird and writing partner Sweet, he wrote Chickens, a satirical sketch about three conscientious objectors during World War I.
[9] In 2012, it was picked up by Sky One who commissioned a full, six episode series;[13] filming began in late 2012 and debuted in August 2013.
[14] Following this, Thomas starred in the student sitcom Fresh Meat as Kingsley Owen and played a Maths teacher in the first episode of the second series of Threesome.