William Mapother is an American actor best known for his intense and memorable roles in television and film. He gained worldwide recognition for playing Ethan Rom in the popular TV series Lost, a role that made him widely known among fans of the show. Mapother has appeared in a variety of movies and television projects, often portraying complex or mysterious characters. Some of his notable film appearances include Mission: Impossible II, The Grudge, and several independent films that highlighted his strong acting ability. Interestingly, William Mapother is also related to Hollywood superstar Tom Cruise—they are first cousins. Despite this famous connection, Mapother has built his own reputation in the entertainment industry through consistent performances and dedication to his craft. Do you know that William Mapother originally studied law before deciding to pursue a career in acting? In this article, we will explore William Mapother’s biography, age, height, net worth, marriage, kids, religion, spouse, career achievements, and much more.
William Mapother Complete Profile
| Attribute | Details |
|---|---|
| Date of Birth | April 17, 1965 |
| Age | 60 years (as of 2025) |
| BirthPlace | Louisville, Kentucky, USA |
| Residence | United States (reported) |
| Education | University of Notre Dame (Bachelor’s Degree) |
| Profession | Actor |
| Nationality | American |
| Religion | Scientology (reported) |
| Marital Status | Married |
| Spouse | Karyn Mapother |
| Children | Not publicly confirmed |
| Father | William Reibert Mapother Sr. |
| Mother | Louise Marie Mapother |
| Siblings | 2 brothers |
| Weight | Approx. 80 kg (176 lbs) |
| Height | 6 ft 1 in (1.85 m) |
| Net Worth | Approx. $1.5 million |
| Horoscope | Aries |
Awards and Nominations
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1999 – Began gaining attention with supporting roles in film and television
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2000 – Appeared in the action film Mission: Impossible II alongside Tom Cruise
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2004 – Achieved global recognition for his role as Ethan Rom in the TV series Lost
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2005 – Appeared in the horror film The Grudge, which was a major commercial success
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2007 – Starred in several independent films that highlighted his dramatic acting skills
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2013 – Played the lead role in the science fiction film Another Earth (widely praised indie project)
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2016 – Continued appearing in television series and independent films
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2020 – Remained active in television and film acting projects
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2025 – Recognized as a respected character actor in Hollywood
Frequently Asked Questions about William Mapother
How old is William Mapother?
William Mapother is 60 years old, born on April 17, 1965.
What is William Mapother’s height?
His height is approximately 6 feet 1 inch (1.85 meters).
What religion does William Mapother follow?
He is reportedly associated with Scientology.
What is William Mapother’s net worth?
His estimated net worth is around $1.5 million.
Is William Mapother married?
Yes, he is married to Karyn Mapother.
What is William Mapother best known for?
He is best known for playing Ethan Rom in the TV series Lost.
What is William Mapother’s educational background?
He earned his Bachelor’s degree from the University of Notre Dame before pursuing acting.
