About Theo Stevenson
Born 1998. Theo Stevenson is a British actor and film actor, known for All Stars (2013 film), Horrid Henry: The Movie and Millie Inbetween.
Theodore John Stevenson (born 27 February 1998) is an English actor and musician. . He is best known for portraying the lead role of Horrid Henry in Horrid Henry: The Movie. He went on to appear as Craig in the sitcom Millie Inbetween (2014β2018) and its spin-off Flatmates (2019β2021), as well as playing Toby in the sci-fi drama Humans (2015β2018).
Life and career In 2007, Stevenson became an actor and took his first film role in Fred Claus as Young Nicolaus. He then appeared in the black comedy In Bruges in 2008. In 2010, he starred in Reuniting the Rubins where he played the role of Jake Rubins. In 2011, he took on his best-known role as Horrid Henry in Horrid Henry: The Movie where he worked alongside Tyger Drew-Honey and Anjelica Huston. He also appeared in the film's music video and appeared on Daybreak in late 2011.
A year after Horrid Henry: The Movie, Vertigo Films announced that Stevenson would star in an upcoming secondary school version of Streetdance called Streetdance Juniors which was renamed All Stars in June 2012, releasing on 3 May 2013. He stars alongside Akai Osei, Ashley Jensen, Kimberley Walsh and John Barrowman amongst others.
From 2014 to 2018, Stevenson had a main role in Millie Inbetween, a CBBC comedy-drama, playing the role of the main character Millie's stepbrother. He later reprised the role for the spin-off Flatmates.
Between 2015 and 2018, Stevenson had a main role as Toby Hawkins in the drama Humans.
Filmography Year Title Role Notes 2007 Fred Claus Young Nick Film 2008 In Bruges Boy in Church 2010 Reuniting the Rubins Jake Rubin 2011 Horrid Henry: The Movie Horrid Henry 2012 Little Cracker Boy 1 episode 2013 All Stars Ethan Film 2014β2018 Millie Inbetween Craig Main role (seasons 1β3); Recurring role (season 4) 2015β2018 Humans Toby Main role 2017 Butterfly Kisses Jake Film 2019β2021 Flatmates Craig Main role 2021 A Woman At Night Nick the Banker Short film 2021 And Then The Tide Came In Dylan
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Important facts
People in Theo Stevenson's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Theo Stevenson's
Frequently asked questions
Who is Theo Stevenson?
British actor
When was Theo Stevenson born?
Theo Stevenson was born on 27 February 1998 in Essex.
What is Theo Stevenson's occupation?
Theo Stevenson is an actor and film actor.
What is Theo Stevenson known for?
Theo Stevenson is known for All Stars (2013 film), Horrid Henry: The Movie and Millie Inbetween.
What nationality is Theo Stevenson?
Theo Stevenson is British.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Theo Stevenson. https://biography.guide/theo-stevenson/
MLA: "Theo Stevenson." Biography.guide, https://biography.guide/theo-stevenson/.
Chicago: "Theo Stevenson." Biography.guide. https://biography.guide/theo-stevenson/.
Data last updated: 2026-09-22 Β· Spot an error? Report a correction.
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