Commander Tebok
Commander Tebok was the first Romulan seen by the Federation after the Tomed Incident in 2311. After the destruction of several Romulan outposts near the Romulan Neutral Zone he was sent to investigate the possibility of Federation involvement. In order to do that he needed to cross the Neutral Zone in 2364. Tebok and Jean-Luc Picard made a limited agreement to share information about the destroyed outposts. (“TNG”:”The Neutral Zone”) (In later episodes it was established that not the Federation but the Borg were responsible for the destructions.)
Tebok was played by Trek regular Marc Alaimo.