Ned Quint was a colonist on Caldos II in the Star Trek: TNG episode "Sub Rosa". He was portrayed by Shay Duffin.
Quint was a groundskeeper, and helped tend to Felisa Howard's affairs after her granddaughter, Beverly Crusher, left for Starfleet Academy. Felisa never mentioned Quint to Beverly, yet he spent much time at her house. Quint was aware that Ronin (an anaphasic lifeform thought to be an evil spirit) and the Howard family candle were dangerous, and warned both Felisa and Beverly of this fact. Beverly wanted Quint to tend to her grandmother's house after her death in 2370, but he said the house was haunted and vowed never to return. Quint was killed when he tried stopping Ronin from using the weather modification network on Caldos II as a means of moving about. It appeared he had been killed by a plasma surge from a console he was trying to dismantle, but residual traces of anaphasic energy made it clear Ronin was involved.