Mister Hendorff was a 23rd century Human Starfleet officer who served as a member of security aboard the Federation starship USS Enterprise.
Hendorff was a member of the landing party on Gamma Trianguli VI in 2267. He was one of Vaal's victims, killed by a pod plant, moments after arriving on the planet's surface. (TOS: "The Apple")
Hendorff was played by actor Mal Friedman. He was the first of four redshirts to be killed in this episode.