Mart McChesney

Mart Dayne McChesney (January 27, 1954 – January 14, 1999) was an American television and film actor known for his appearances in Star Trek: The Next Generation as the tar creature, Armus, in "Skin of Evil" (1988), and as Sheliak in "The Ensigns of Command" (1989).

More Photos Of Mart McChesney