ActressesHub 
- Chinese Name：威廉·麦鲍瑟
- Gender：Male
- Height：5 ft 10 in (178 cm)
- Date of Birth：April 17, 1965
- Place of Birth：Louisville, Kentucky, USA
- Profession：Actor
- Introduce：William Mapother is an American character actor known for his intense, often unsettling performances across film and television. A cousin of Tom Cruise, Mapother entered the entertainment industry with small roles, gradually establishing a niche in portraying morally ambiguous or villainous characters. He appeared in Born on the Fourth of July (1989) early in his career, followed by numerous guest spots on television series. Mapother gained significant recognition as Ethan Rom on the hit ABC series Lost (2004–2010), where his chilling performance became a highlight of the show’s early seasons. His film work spans independent dramas and major studio productions, with notable credits including In the Bedroom (2001), The Grudge (2004), World Trade Center (2006), and Another Earth (2011), the latter showcasing a softer, more contemplative side of his craft. Mapother is respected in the indie film community, frequently choosing projects that emphasize complex narratives and psychological depth. His distinctive screen presence—combining understated menace with emotional nuance—has made him a reliable and memorable supporting player. Outside acting, he is known for his advocacy for independent filmmaking and efforts to support up-and-coming talent in the industry.
