Bill Hadley

Lieutenant Hadley was a Starfleet officer who served aboard the USS Enterprise (NCC-1701) in the 2260s. Like many officers attached to the Enterprise, Hadley had rotating assignments aboard the ship, ranging from helm and navigation duties, to security.

In early 2267, Hadley was serving on the bridge when Khan Noonien Singh took control of the ship, and passed out along with the rest of the bridge crew when Khan cut life-support to the bridge. He was later restored to full health and was present at Khan's hearing. (TOS episode: "Space Seed").

A few weeks later, Hadley was transferred to the security division and served under Lt. Commander Anton Giotto. He formed part of the search detail that was charged with tracking down Lazarus, and several weeks later, accompanied a large detachment to Janus VI to track down the mysterious Horta. (TOS episodes: "The Alternative Factor" and "The Devil in the Dark").