William Mapother Autographs
William Reibert Mapother Jr. (/ˈmeɪpɒθər/; born April 17, 1965) is an American actor, known for his role as Ethan Rom on the television series Lost and starring in the film In the Bedroom. He is also known for the film Another Earth.
Mapother was born in Louisville, Kentucky, the son of Louisa (née Riehm) and William Reibert Mapother Sr. His father was an attorney and served as a judge in Louisville between 1967 and 1970. Mapother Jr. is a first cousin of actor Tom Cruise, whose birth name is Thomas Cruise Mapother IV.
Mapother has become widely known as a character actor, and sometimes plays scary or otherwise dark characters. He played a pivotal role in Todd Field's In the Bedroom, and is perhaps best known as Ethan Rom in the TV show Lost, which he played for 11 episodes during the life of the series.
Read more about William Mapother on Wikipedia
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Traded items with a signature of William Mapother
The most expensive item with a signature of William Mapother (Lost Archives 2010 Auto Autograph Card William Mapother as Ethan Rom) was sold in January 2026 for $38.98 while the cheapest item (WILLIAM MAPOTHER (LOST) AUTOGRAPH INDEX CARD~) found a new owner for $0.99 in February 2023. The month with the most items sold (6) was March 2025 with an average selling price of $35.00 for an autographed item of William Mapother. Sold items reached their highest average selling price in October 2025 with $38.98 and the month that saw the lowest prices with $1.22 was January 2018. In average, an autographed item from William Mapother is worth $11.74.
Most recently, these items with a signature of William Mapother were sold on eBay - click here for more items.
| Picture | Item Title | Price | Store |
 | 2005 INKWORKS LOST WILLIAM MAPOTHER AS ETHAN ROM AUTO AUTOGRAPH | $14.99 |  |
| 2010 Rittenhouse LOST William Mapother Autograph Ethan Rom *K948 | $27.98 | |
| LOST Ethan WILLIAM MAPOTHER with COA signed AUTOGRAPH 4862 | $12.99 | |
 | Lost Archives 2010 Auto Autograph Card William Mapother as Ethan Rom | $33.98 | |
| Lost Archives 2010 Auto Autograph Card William Mapother as Ethan Rom | $38.98 | |
| Lost Archives 2010 William Mapother as Ethan Rom Autograph Card | $20.95 | |
| Lost Archives by Rittenhouse Autograph Card William Mapother as Ethan Rom | $11.74 | |
| LOST SEASON 1-5 WILLIAM MAPOTHER/ETHAN ROM AUTOGRAPH CARD LIMITED! | $17.99 | |
| Lost Seasons 1 thru 5 - 2010 Auto Autograph William Mapother as Ethan Rom | $38.98 | |
| Lost Seasons 1-5 William Mapother as Ethan Rom Autograph Card | $20.95 | |
| LOST TV SHOW SERIES William Mapother Film Movie Actor SIGNED & AUTOGRAPHED CARD | $19.99 | |
 | UNCIRCULATED - LOST Season 1 Autograph Card William Mapother as Ethan Rom A-6 | $30.94 | |
| WILLIAM MAPOTHER & SCOTT PAULIN 2 Hand Signed Autograph 4X6 PHOTO S- 2 ACTORS | $5.00 | |
| WILLIAM MAPOTHER Authentic 2 Hand Signed Autograph 4X6 PHOTO S- ACTOR - LOST | $5.50 | |
| WILLIAM MAPOTHER AUTOGRAPH "LOST" RITTENHOUSE ARCHIVES ETHAN ROM AUTO SIGNED | $9.45 | |
William Mapother signed Movies Trading Cards by Manufacturer
