For the Trill symbiont of the same name, please see Dax (symbiont).

Crewman Dax was a Megazoid Starfleet enlisted crewmember serving aboard the USS Enterprise-A under Captain Kirk.

In 2293, Dax was briefly suspected of participating in the assassination of Klingon chancellor Gorkon, but his innocence was proven by the shape of his feet, which would not fit into the magnetic boots that were believed to have been used by the perpetrators.

The boots had actually been planted in Dax's locker by Lieutenant Valeris, a member of the conspiracy. (Star Trek VI: The Undiscovered Country)

Crewman Dax was played by actor Michael Snyder.