who plays smeagol in return of the king
Andy Serkis Serkis first came to wide public notice for his performance as Sméagol / Gollum, in The Lord of the Rings film trilogy (2001–2003), for which he provided motion capture movements and voice for the CGI character. His work on The Lord of the Rings started a debate on the legitimacy of CGI-assisted acting. Some critics[15] felt Serkis should have been nominated for the Academy Award for Best Supporting Actor, since his voice, body language, and facial expressions were used. There is the argument that his CGI actions were partially, or in some cases fully, animated without his movements, but the same is true for actors in a traditional film with CGI. Serkis appears briefly in live action as pre-Gollum Sméagol at the beginning of The Return of the King, and the CGI Gollum's facial characteristics are fundamentally based on Serkis' own.
Hafþór Júlíus Björnsson Hafþór Júlíus "Thor" Björnsson (Icelandic pronunciation: ​[ˈhafθour ˈjuːliʏs ˈpjœsːɔn]; born November 26, 1988) is an Icelandic professional strongman, actor, and former professional basketball player. He plays Ser Gregor "The Mountain" Clegane in the HBO series Game of Thrones.