Ivan Simon Cary Elwes (; born 26 October 1962) is a British actor and writer. He is best known for his leading film roles as Westley in The Princess Bride (1987), Robin Hood in Robin Hood: Men in Tights (1993), and Dr. Lawrence Gordon in the Saw film series. He is also known for leading roles in films like Glory (1989), Hot Shots! (1991), and The Jungle Book (1994), as well as supporting roles in films including Days of Thunder (1990), Bram Stoker's Dracula (1992), Twister (1996), Kiss the Girls (1997), Liar Liar (1997), Michael Collins in From the Earth to the Moon (1998), Cradle Will Rock (1999), Shadow of the Vampire (2000), The Cat's Meow (2001), Ella Enchanted (2004), A Christmas Carol (2009), and No Strings Attached (2011). He has had recurring roles in television series including The X-Files, Seinfeld, Psych, and Stranger Things. He joined the third season of The Marvelous Mrs. Maisel as Gavin Hawk, a famed Broadway actor.