William Mapother (born April 17, 1965) portrayed Wallis in Mission: Impossible II.
Mapother, the first cousin of Tom Cruise, is an American actor who has appeared in movies such as In the Bedroom, Suspect Zero, The Grudge, Lords of Dogtown, The Zodiac, The Lather Effect, and Moola. He has also appeared in episodes of Touched by an Angel, Line of Fire, Threshold, and Lost (playing Ethan Rom, one of the "others").
He has provided the motion capture work for Agent 47, the main character in the 2012 video game Hitman: Absolution and also provided the voice before series veteran David Bateson was recast.