William Sadler is an American film and television actor. Sadler portrays Jim Valenti on WB sci-fi series Roswell.


Sadler's 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, and—perhaps most notably—the Grim Reaper in Bill & Ted's Bogus Journey, a role for which he was nominated for, and won, the Saturn Award for Best Supporting Actor,[1] and his role as the villainous Colonel Stuart alongside Bruce Willis in Die Hard 2.


  • Man on a Ledge
  • Roswell (Sheriff Valenti)

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