Brett Thomas

Lieutenant Brett Thomas was a 23rd century Starfleet officer who is currently the commanding officer of the USS Lion.

In 2270, he served as the first officer and the helmsman of the Lion, under the command of Isaac Garrett. He was chosen by Garrett to lead the away team Taurus II via shuttlecraft. After the away mission, he was made the CO by Garrett, who got promoted to Admiral. (Star Trek Online)