Michael Trisler was a stunt coordinator[1], stuntman, and actor on Lost. As a stuntman, he played Sawyer in "The Shape of Things to Come" in the scene where Claire's house exploded. [2] He also played Juliet's father in the episode "The Incident, Part 1".
Trisler can be seen on the Season 5 DVD "Lost On Location" featurette for the episode "The Lie" discussing the making of the flaming arrow attack. [3]