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In the film series known as "The Divergent Series," specifically in "Divergent" (2014) and its sequels, Theo James portrays the character of Tobias Eaton, also known as Four. As a Dauntless faction member, Four serves as a mentor and love interest to the protagonist, Tris Prior, played by Shailene Woodley. James's charismatic portrayal of Four has made him a fan-favorite character throughout the series.