watch 01:33 The Loop (Movies) Do you like this video? Luke Roberts (born 1977) is a British actor. He is best known for his role as Joseph Byrne in Holby City. He appeared in Pirates of the Caribbean: On Stranger Tides as the Captain of the Guard. This article is a stub. You can help us by expanding it. AppearancesEdit Pirates of the Caribbean: On Stranger Tides - Captain of the Guard External linksEdit Luke Roberts at the Internet Movie Database Retrieved from "https://pirates.fandom.com/wiki/Luke_Roberts?oldid=110948" Categories: Stub Real-world actors Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.