Christopher Catesby Harington is an English actor who is widely known for his role as Jon Snow in the HBO epic fantasy television series Game of Thrones (2011–2019). He studied at the Royal Central School of Speech and Drama and made his professional acting debut with the lead role of Albert Narracott in the West End play War Horse in 2009. He has received several awards, including a Golden Globe Award nomination and two Primetime Emmy Awards nominations. Harington developed, produced, and starred in the 2017 BBC drama series Gunpowder, based around the leading role of his ancestor Robert Catesby in the Gunpowder plot. His film roles include the historical romance film Pompeii (2014), the British period drama Testament of Youth (2014), and the Marvel Cinematic Universe film Eternals (2021). He also voiced Eret in the second and third films of the How to Train Your Dragon film series (2014–19).