
Joseph "Joe" Thomas (born 28 October 1983) is an English actor. He played Simon Cooper in the E4 sitcom The Inbetweeners (2008–2010) and its two film adaptations, The Inbetweeners Movie (2011) and The Inbetweeners 2 (2014). 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. In 2018, he starred in the comedy film The Festival.
Born in Chelmsford, Essex, as the first of four boys, Thomas attended King Edward VI Grammar School, Chelmsford before reading History at Pembroke College, Cambridge. At Cambridge, Thomas was a member of the Footlights, alongside his future Inbetweeners co-star Simon Bird. Bird and Thomas served as the President and the Secretary of the Footlights, respectively, in 2005–2006. After graduating in 2006, Thomas briefly shared a flat with Bird and fellow Pembroke graduate and Footlights alumnus Jonny Sweet.

Mummies
2023 · as Thut (voice)

The Inbetweeners Movie
2011 · as Simon Cooper

The Festival
2018 · as Nick

The Inbetweeners 2
2014 · as Simon Cooper

The Darkest Universe
2016 · as Toby

3 of a Kind
as Robin Banks

Scottish Mussel
2015 · as Danny

Universal
2025 · as Leo

We Are Not Alone
2023 · as Greggs

Plebs: Soldiers of Rome
2022 · as Amadeus

Mamma Mia! Here We Go Yet Again
2019 · as Three Very Different Young Men

Friday Night Dinner: 10 Years and a Lovely Bit of Squirrel
2021 · as Self

The Inbetweeners: Fwends Reunited
2019 · as Self

The Inbetweeners Go Global
2014 · as Self

A Trick of the Light
2011 · as Joe