American actor and director (1923 to 2010) who played the President of the Federation Council in Star Trek IV: The Voyage Home and Wyatt Miller's father in The Next Generation.
Robert Ellenstein was an American actor, director and teacher whose screen career ran from live television in the 1950s to the 1990s, and included a small part in Hitchcock's North by Northwest.
In Star Trek IV: The Voyage Home (1986) he played the President of the Federation Council. He presides over the hearing at which the Klingon ambassador demands Kirk's extradition, broadcasts the planetary distress call when the whale probe cripples Earth, and finally pronounces the lenient verdict that reduces Kirk to captain.
He returned to Star Trek in the first season of The Next Generation as Steven Miller, father of Deanna Troi's intended husband, in the episode Haven.