A member of the Vulcan origin race that is dishonorable and always up to shenanigans. Unlike Klingons who actually have honor, Romulans bomb innocent civilians, pretend to be in an alliance and stab everyone in the back to get what they want, and lie to their friends.
The most cowardly race on Star Trek.
Famous for using underhanded methods to advance and backstabbing the Klingons.
Romulan backstabbed their allies when it started looking rough.