Lee Grinner Pace (born March 25, 1979) is an American actor. He starred as Thranduil the Elvenking in The Hobbit trilogy and as Joe MacMillan in the period drama television series Halt and Catch Fire. He has also appeared in the Marvel Cinematic Universe as Ronan the Accuser, a role he first played in Guardians of the Galaxy and reprised in Captain Marvel. His other notable television role includes voicing Thragg in the animated series Invincible (2026–present). Pace earned a 2008 Emmy nomination for his portrayal of Ned in the comedy-drama television series Pushing Daisies. Since 2021, he has starred as the galactic emperor Brother Day in the science fiction television series Foundation, based on the stories of Isaac Asimov.