He is best known for playing Oliver Wood in the Harry Potter film series, appearing in Philosopher's Stone (2001), Chamber of Secrets (2002), and Deathly Hallows – Part 2 (2011).

[1] Biggerstaff gained his first professional acting role at ten, playing the son of MacDuff in a Michael Boyd production of Macbeth at the Tron Theatre, Glasgow.

Alan Rickman (known to most of the kids as "the bad guy from Die Hard") popped along one day looking for two boys to accompany him to the coldest place on Earth, Fife, for two months to make a film.

[3] Biggerstaff's career since the first two Harry Potter films has included playing Henry, Duke of Gloucester in the 2004 television mini-series Charles II: The Power and The Passion;[4] Matt in the world premiere of Sharman MacDonald's stage play The Girl With Red Hair;[5] and Ben Willis in the short film Cashback for which extra scenes were recorded, and the piece was adapted into a feature released in 2006.

[9] In 2016, Biggerstaff played the lead role in French-Canadian Catherine-Anne Toupin's Right Now, a translation by Chris Campbell of À présent, directed by Michael Boyd, which was critically and commercially well received in Bath, London, and Edinburgh.