William Mapother

William Reibert Mapother, Jr. (born April 17, 1965) is an American actor who voiced Colonel Hsu in Fallout: New Vegas.

Career
Mapother is best known for his role as Ethan Rom on the television series Lost. He is the cousin of Tom Cruise. Mapother's only prior voice acting experience before Fallout: New Vegas were two appearances on Robot Chicken and the cartoon WordGirl. He has since appeared in the 2016 video game Hitman.