William Thomas Sadler (born April 13, 1950) is an American film and television actor. His television and motion picture roles have included
Lewis Burwell "Chesty" Puller in
The Pacific, Luther Sloan in
Star Trek: Deep Space Nine,
Sheriff Jim Valenti in
Roswell, convict Heywood in
The Shawshank Redemption, and the
Grim Reaper in
Bill & Ted's Bogus Journey, a role for which he won the Saturn Award for Best Supporting Actor, and his role as the villainous Colonel Stuart opposite
Bruce Willis in
Die Hard 2. He played the character of President of the United States, Matthew Ellis, in
Iron Man 3 and in
Marvel's Agents of S.H.I.E.L.D., and recurs as Steve McGarrett's murdered father in the latter-day 2000's
remake of Hawaii Five-O. In 2015, Sadler had an appearance in the TV series
Z Nation.