Star Trek has been around for decades, and it takes a lot of people to fill a ship. As such, there's no shortage of actors who have joined its ranks over the years, but even in 2025, there are still some who haven't.

Penny Jerald Johnson has been with The Orville since its pilot episode, playing Dr Claire Finn, the ship's chief medical officer. Star Trek viewers will know her both as Dobara from The Next Generation episode Homeward, though more prominently as Kassidy Yates from Deep Space Nine.

Voyager had a cast that worked well together from the beginning. There didn't seem to be a hint of an issue between them all, and for three seasons, they created some incredible episodes. Of course, some weren't as good as others,