For the similarly named holographic character, please see Trevis.

Trevix was a Denobulan geologist for the Denobulan Science Academy.

In late 2152, she was assigned to a team lead by Dr. Yolen to Xantoras to study unique rock formations there. The three of them climbed through maze-like tunnels to get to where they set up their base, and left sample containers throughout the caves.

In February of 2153, a xenophobic faction took over the Xantoras government and demanded that all aliens leave the planet. The scientists were too far underground to receive the message, and as the nearest Denobulan starship was several days away, the Denobulan government asked Enterprise NX-01 to retrieve Trevix and her team. She and the other two scientists were reluctant to leave. Trevix believed the Science Academy didn't appreciate their work enough.

She didn't object to traveling on an alien ship back to Denobula with an Antaran, against whom her people held many prejudices since their species went to war. (ENT: "The Breach")

Trevix was played by Laura Putney.
In the final draft script of "The Breach", Trevix had extra dialogue, as she at first "politely" told the away team from Enterprise (while mistakenly thinking they were another team of geologists), "This is our site."