So: a living American man, first name starts with G, born before 1959, with his greatest fame before 2000. In the performing arts but not best known as an actor, singer, musician, comedian or TV personality. Also not known for sports.
Were you a freedom fighter with a very sharp sword?
Did you play the moms of two doomed young women?
Were you Spock’s sweetie in prehistoric Sarpeidon?
IQ1: Were you a founding member of the Walden Commune?
IQ2: Were you JJ’s second husband, and Alex’s stepfather?
IQ3: Were you an American explorer captured by the Spanish whilst exploring the Red River?