Thomas Brodie-Sangster made his screen debut in the 2001 television romantic-drama film ‘Station Jim’ directed by John Roberts. The film has a 7.0 out of 10 rating on IMDb. He next appeared in television films and series such as ‘The Miracle of the Cards’ (2001), ‘Stig of the Dump’ (2002), ‘Bobbie's Girl’ (2002), and ‘London's Burning’ (2002). In 2003, he made his first big-screen appearance in the Christmas-themed romantic comedy-drama film ‘Love Actually’ directed by Richard Curtis. While the film opened to a mixed reception, it managed to gross over $246.8 million on a $40–45 million budget. He was next seen in films such as ‘Nanny McPhee’ (2005), ‘Molly: An American Girl on the Home Front’ (2006), ‘Tristan & Isolde’ (2006), and ‘The Last Legion’ (2007). In 2007, he joined the voice cast of the American animated musical-comedy television series ‘Phineas and Ferb’ where he voiced ‘Ferb Fletcher.’ The series ran for 4 seasons and aired its final episode in 2015. He next starred as ‘Samuel Brawne’ in the 2009 biographical romantic drama film ‘Bright Star’ directed by Jane Campion. The film received a positive response from critics and earned an 83% approval score on Rotten Tomatoes. That same year, he portrayed ‘Paul McCartney’ in the Sam Taylor-Wood-directed British biographical drama film ‘Nowhere Boy.’ The film opened to a positive reception and received 4 ‘British Academy Film Award’ nominations.Â
Brodie-Sangster continued to star in films like ‘Hideaways’ (2011), ‘Death of a Superhero’ (2011), ‘Albatross’ (2011), and ‘The Baytown Outlaws’ (2012). In 2013, he became a part of the American fantasy drama television series ‘Game of Thrones’ created by David Benioff and D. B. Weiss. He played the role of ‘Jojen Reed’ and remained on the show until 2014. He next appeared in television series and shows such as ‘American Dad!’ (2014), ‘Wolf Hall’ (2015), ‘Thunderbirds Are Go’ (2015-2020), ‘Godless’ (2017), and ‘The Queen's Gambit’ (2020). He was last seen in the 2022 biographical drama miniseries ‘Pistol’ where he played the role of ‘Malcolm McLaren.’