British screen actor best known for his role as Dean Thomas in seven of the popular Harry Potter movies. He also played Wes on the ABC series called How to Get Away with Murder.
After graduating from London's Westminster School, he studied Spanish and Portuguese at The Queen's College, Oxford.
The only Harry Potter film in which he did not appear was Harry Potter and the Deathly Hallows - Part 1.
His father, William Russell, also had a career as a television actor. His mother, Balbina Gutierrez, was born in Brazil and worked as a doctor.
He shared the small screen with series star Benedict Cumberbatch in a 2014 episode of the hit TV show Sherlock.