Armin Shimerman
Armin Shimerman - Star Trek: Deep Space Nine
Max Grodenchik
Max Grodenchik - Star Trek: Deep Space Nine
Avery Brooks
Avery Brooks - Star Trek: Deep Space Nine
Alexander Siddig
Alexander Siddig (Siddig El Fadil) - Star Trek: Deep Space Nine
Patti Yasutake
Patti Yasutake played Ensign Alyssa Ogawa, a nurse in Dr. Crusher's sickbay, on Star Trek: The Next Generation.
Mark Lenard
Mark Lenard - Star Trek: The Next Generation
Grace Lee Whitney
Grace Lee Whitney - Star Trek: The Original Series & Movies
Garrett Wang
Garrett Wang - Star Trek: Voyager
Denise Crosby
Denise Crosby played Tasha Yar, the chief of security and tactical officer. Crosby left the series at the end of the first season when Tasha was killed off.

She returns in alternate timelines in the award-winning episode “Yesterday’s Enterprise” and the series finale, “All Good Things...”. Crosby also played Commander Sela, Yar’s half-Romulan daughter.
David Warner
David Warner (Gul Madred) - Star Trek: The Next Generation

The Original Cast

The Next Generation Cast