From Wikipedia, the free encyclopedia. Vaughn Dale Armstrong (born July 7, 1950 in Sonora, California) is an American actor. Armstrong served in the United States military and saw action in the Vietnam War. Star Trek Vaughn Armstrong is one of the longest-serving actors in the Star Trek franchise, having appeared in every Trek series but the original. He has played twelve different characters over the years - a record unmatched by any other actor in Trek. Armstrong's first appearance in Trek was in the Star Trek: The Next Generation episode "Heart of Glory" in which he played Commander Korris, a renegade Klingon who stole a cargo ship and tried to use it to attack his fellow Klingons (whom he believed had gone "soft"). His other characters are:     Klingons:         Commander Korris (Star Trek: The Next Generation episode "Heart of...