Phlox

"You're re-examining your core beliefs, something most people never do."

- Phlox to T'Pol Phloxx-tunnai-oortann, better known as Phlox, was a Denobulan introduced in the Enterprise episode Broken Bow.

Becoming a doctor in the early 22nd century, by the 2150s Phlox had been a doctor for over 40 years. He had worked as a medic in the Denobulan infantry, followed by time working in the Interspecies Medical Exchange. In 2151 he was asked by United Earth Starfleet Captain Jonathan Archer to become chief medical officer on the Enterprise.

During his service as CMO he played a vital role in developing a cure for the Klingon created Qu'vat virus. While he was able to cure the infected Klingons millions of Klingons and their descendants were left with a more human appearance by the virus. He would continue serving as CMO throughout the Earth-Romulan War. Phlox would remain on the Enterprise until its decommissioning in 2161 after the end of the war.

After the end of the war, Phlox became the CMO on the Columbia class ship Endeavour (NCC-06), which had been incorporated into the Federation Starfleet following the establishment of the United Federation of Planets.

Phlox was still alive in the 23rd century, and in the 2250s was a professor at Starfleet Medical.