Ivan Simon Cary Elwes (/ˈɛlwɪs/; born 26 October 1962) is an English 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 such as Days of Thunder (1990), 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 such as The X-Files, Psych, and Stranger Things. He recently joined the third season of The Marvelous Mrs. Maisel as Gavin Hawk.