John Fleck (born May 7, 1951) is an American actor and performance artist. His guest roles include Silik on the television series Star Trek: Enterprise, the Romulan Taibak on Star Trek: The Next Generation, several characters on Star Trek: Deep Space Nine and the pilot to Babylon 5, The Gathering. He starred as Gecko on the television show Carnivàle, and as Louis on Murder One. He also appears in Howard The Duck, Waterworld and the ZZ Top music video Legs. He made a minor appearance in the Seinfeld episode The Heart Attack. He plays a minor character during the sixth season of Weeds. He wrote and performed "Mad Women" at La MaMa E.T.C.