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 Glory")        Korath (Star Trek: Voyager episode "Endgame", also appearing in Star Trek: The Experience)         Klaax (Star Trek: Enterprise episode "Sleeping Dogs")     Cardassians:         Gul Danar (Star Trek: Deep Space Nine episode "Past Prologue")         Seskal (Star Trek: Deep Space Nine episodes "When It Rains…" and "The Dogs of War")     Romulan:         Telek R'Mor (Star Trek: Voyager episode "Eye of the Needle")     Borg:         Lansor/Two of Nine (Star Trek: Voyager episode "Survival Instinct")     Vidiian:         Vidiian Captain (Star Trek: Voyager episode "Fury")     Human:         Admiral Forrest (recurring role on Star Trek: Enterprise)         Captain Maximilian Forrest (Mirror Universe version of Admiral Forrest)     Hirogen:         Hirogen-Alpha (Star Trek: Voyager episode "Flesh and Blood")     Kreetassan:         Kreetassan Captain (Star Trek: Enterprise episodes "Vox Sola" and "A Night In Sickbay") While his most recent character, Admiral Forrest, was killed in action on Star Trek: Enterprise, Armstrong got the chance to play Forrest again in the two-part episode "In a Mirror, Darkly", in which the Mirror Universe version of Forrest appears. Other work Outside of Star Trek, Armstrong appeared on Babylon 5 as a security guard affiliated with the Nightwatch in the 1996 episodes "Messages from Earth" and "Point of No Return". He appeared in an episode of Seinfeld as a detective, and in Quantum Leap, he guest starred in the episode "It's A Wonderful Leap" as Fred Trump (father of Donald Trump), alongside future Enterprise co-star Scott Bakula. In 2000, Armstrong made an appearance in Power Rangers Lightspeed Rescue as Special Agent Myers and has also appeared in such classic feature films as Cinderella 2000 and The Philadelphia Experiment. He appeared as President Krieger in Disruptor (video game) released in 1996. Armstrong's talents extend into the musical arena. He has mastered the ukulele, using a "banjo"-style ukulele he made himself. With it he entertains audiences with Civil War-era songs and roots music, leading into the blues music he plays with others. His Trek-related blues songs are popular at convention appearances. His filk-song band, The Enterprise Blues Band, includes fellow Trek actors Richard Herd (Owen Paris), Steve Rankin (Colonel Green and other roles), and Casey Biggs (Damar). He has joked onstage during conventions that he is the innovator of Klingon "gutbucket" music, and Andorian blues.