McCoy or Bones as he is called was the Chief Medical Officer on Enterprise. Resigned from StarFleet after the five-years mission but returned when Kirk ressumed command of the Enterprise.

 Considered a hothead, and a maverick for his incapability of keeping his mouth shut. Enjoys to spar verbally against Spock on the account of emotions values and usefulness.

 Re-assigned to StarFleet HQ together with Kirk. McCoy was given the office of Chief Medical President. Thereby being StarFleet´s highest ranking Medical Officer.

 He has reached the age of 140 and is as feisty and abusive as ever. Played a key-roll when Enterprise-D was forced to perform a rescue operation in Romulan territory when Spock and his followers had been captured.

 Nurtures a passionate hate against transporters.