​From Wikipedia, the free encyclopedia. Charles Sebastian Thomas Cabot  (July 6, 1918 – August 22, 1977) was an English film and television actor, best remembered as the gentleman's gentleman, "Giles French," opposite Brian Keith's character, in the 1960s sitcom Family Affair. He was also known for playing Dr. Carl Hyatt in the series Checkmate and for doing the voice of Bagheera in The Jungle Book. Description above from the Wikipedia article Sebastian Cabot (actor), licensed under CC-BY-SA, full list of contributors on Wikipedia