R.I.P., Majel Barrett Roddenberry
I'm sorry to see that Majel Barrett Roddenberry died of leukemia this morning, age 76.
Memory Alpha's entry says that she was "the only performer to have had a role on all of the Star Trek series": as Number One in the original series pilot, as the voice of the Enterprise computer in many contexts, as Lwaxana Troi, and as various other characters.
She's reprising the ship's-computer-voice role for the new Trek movie; the abovelinked article says she completed recording for that a couple weeks ago.
She also (I don't remember whether I knew this) played the widow of the Centauri emperor in Babylon 5. Plus a character in the animated Spider-Man TV series in the mid-'90s, plus many other roles in other shows and movies.
And she was executive producer of Earth: Final Conflict and Andromeda.
I think of her as one of the main people who kept Trek going all these years, but I don't know whether that's really true or not. Regardless, she certainly contributed a lot to the various shows and movies.