Apparently Sean Astin (Sam Gamgee in The Lord of the Rings) is the son of John Astin and Patty Duke. I never knew that.

Oldsters like me will remember John Astin as Gomez in the original The Addams Family and Patty Duke from The Patty Duke Show (oddly enough). Patty Duke was also Helen Keller opposite Anne Bancroft as Annie Sullivan in The Miracle Worker, if I recall correctly. Patty took the role of Annie Sullivan in a remake of The Miracle Worker a few years ago. John Astin had a great part as a professor in The Adventures of Briscoe County, Jr. a few years ago.