Mark Ian Addy is an English actor. His roles in British television include Detective Constable Gary Boyle in the sitcom The Thin Blue Line (1995–1996), Andy Richmond in Trollied (2011–2013), and Hercules in the fantasy drama series Atlantis (2013–2015).

Atlantis is a British fantasy-adventure television programme inspired by Greek mythology and created by Johnny Capps and Julian Murphy with Howard Overman. It premiered on 28 September 2013 on BBC One. In the show, submarine pilot Jason washes up on the shores of legendary Atlantis and must navigate the powerful leaders of the mythological realm.