Stephen "Steve" Andrew Blalock is a stuntman and stunt actor who worked for several years on Star Trek: The Next Generation, Star Trek: Voyager, and Star Trek: Enterprise. He also performed stunts in several Star Trek films, and was one of the stand-ins for Leonard Nimoy. He received no credit for any of his Star Trek television appearances. More recently, Blalock performed stunts in J.J. Abrams' Star Trek. His costume vest from the episode "Worst Case Scenario" was previously worn by actor John Franklyn-Robbins in the episode "Preemptive Strike" . [1]