B'Elanna Torres

B'Elanna Torres is the part-Klingon Chief Engineer aboard the USS Voyager. A former member of a terrorist cell led by Chakotay, Torres was forced to join the crew of the Voyager after the terrorist's ship was destroyed following the violent snatching of the two ships that flung them far into the Delta Quadrant. Despite initially being rebellious and angry, Torres soon settled down and responsibly took on her new role as Chief Engineer. Under her watchful eye, the Voyager's engines kept in working order for the duration of their journey which earned her a full commission into Starfleet.

She struck up a friendship with Harry Kim initially, but she seemed to dislike Tom Paris. We all wonder why.