29. Mark Lenard was the first actor in "Star Trek" history to portray members of three non-human races (Romulan, Vulcan and Klingon). Who was the second?
From Quiz Tough "Trek" Trivia III
Answer:
Marc Alaimo
Best known as Gul Dukat on "DS9", Marc Alaimo also played in several episodes of "TNG", including as the first Cardassian seen in "Star Trek", Gul Macet ("The Wounded"), in 1991. Prior to that, he was the Antican delegate Badar N'D'D in "Lonely Among Us", and Romulan Commander Tebok in "The Neutral Zone" (both in 1987). And he also did play a human, the 19th Century poker player Frederick LaRouque, in "Time's Arrow, Part I".
Of the other listed actors, James Sloyan has played a Romulan and a Klingon on "TNG", the Bajoran Dr. Mora Pol on "DS9", and a Haakonian on "Voyager". Suzie Plakson was a Vulcan and a Klingon (okay...half-human/half-Klingon) on "TNG", a member of the Q Continuum on "Voyager", and an Andorian on "Enterprise". And Vaughn Armstrong (Admiral Forrest of "Enterprise"), has had numerous guest roles in "Star Trek", including two Klingons, a Cardassian, a Romulan, two Kreetassans, a Hirogen, and more.