American actor (1912 to 1994) whose final film role was David McCoy, the dying father of Leonard McCoy, in the vision conjured by Sybok in Star Trek V: The Final Frontier.
Bill Quinn was an American character actor whose career stretched from silent films as a child to television in the 1980s. He was a familiar figure as the bartender Sweeney in The Rifleman and as Mr Van Ranseleer in All in the Family and Archie Bunker's Place.
In Star Trek V: The Final Frontier (1989) he played McCoy's father, seen in the secret pain that Sybok forces the doctor to relive. Terminally ill and in agony, the old man begs his son to release him, and McCoy switches off the life support, only for a cure to be found soon afterwards.
The character is not named in the scene; the name David comes from McCoy's formal introduction of himself on Vulcan in Star Trek III. It was Quinn's last screen appearance.