Will Theakston, also known as William Theakston, is a former English actor best known for playing Terence Higgs, a Slytherin Quidditch player, in the first Harry Potter film. His acting career began during his teenage years, with an early appearance in the short film Killing Joe in 1999. He subsequently appeared in children’s television productions, including The Ghost Hunter and Sir Gadabout, the Worst Knight in the Land. Although his screen career was relatively brief, his role in the Harry Potter franchise connected him to one of the most successful fantasy film series of all time. Reviewing Will Theakston movies by year reveals a small but notable filmography, with one major feature-film credit and an earlier short-film appearance.
1999 — Killing Joe
Killing Joe is a short film featuring Will Theakston as a boy with asthma, also described in some listings as a boy at the sideline. This early screen appearance predates his best-known role in the Harry Potter franchise and marks the beginning of his documented acting career. The production is classified as a short film rather than a full-length theatrical feature, so it is included here for completeness but distinguished from his feature-film work. It remains one of the earliest entries in Will Theakston’s screen filmography.
2001 — Harry Potter and the Philosopher’s Stone

Will Theakston played Terence Higgs, the Slytherin Quidditch Seeker, in Harry Potter and the Philosopher’s Stone, released in the United States as Harry Potter and the Sorcerer’s Stone. Directed by Chris Columbus, this fantasy adventure follows Harry Potter as he discovers that he is a wizard and begins his education at Hogwarts School of Witchcraft and Wizardry. The film stars Daniel Radcliffe, Rupert Grint and Emma Watson, alongside an established supporting cast that includes Richard Harris, Maggie Smith and Alan Rickman. Theakston’s role is brief, but his character belongs to Slytherin’s Quidditch team, which competes against Harry and the Gryffindor team during the film.
Conclusion
Will Theakston’s acting career was short but includes a memorable connection to a major fantasy franchise. His early appearance in the short film Killing Joe in 1999 preceded his role as Terence Higgs in Harry Potter and the Philosopher’s Stone in 2001. Although he also appeared in television series such as The Ghost Hunter and Sir Gadabout, the Worst Knight in the Land, these productions are not included as feature films. This chronological overview of Will Theakston movies by year reflects his documented film appearances while distinguishing short-form work from theatrical cinema.
