Lots of them have been on star trek! Cooper/Seward was Janeway's great aunt's love interest or something, Locke played an evil time destroying dude, Jin came over on a spaceship that was in the past but time moved differently so when he went back it was the future...or something! Juliet and Locke both appeared in JAG, Locke's name being "Admiral Thomas Boone"! DJ Qualls, or Johnny from Mr. Clucks, and Hurley were both in "little athens."