My background is basically scientific math. My Dad was a physicist, so I have it in my blood somewhere. Scientific method is very important to me. I think anything that contradicts it is probably not true.

Astin can be seen singing and playing cowbell in a music video from JHU released in December 2009. Possibly" (1985) – Harry Pierce
Murder She Wrote: "A Lady In the Lake" (1985) (television) – Harry Pierce
Murder She Wrote: "Sticks and Stones" (1985) (television) – Harry Pierce
National Lampoon's European Vacation (1985) – Kent Winkdale (host of "A Pig in a Poke")
Mr. Personal life
He has five sons; three (David Allen and Tom) with his first wife Suzanne Hahn one (Mackenzie Astin) with his second wife actress Patty Duke and one (Sean Astin) who was Patty's son from another relationship which John adopted after their marriage.

John Allen Astin (born March 30 1930) is an American actor who has appeared in numerous films and television shows and is best known for the roles of Gomez Addams on The Addams Family Evil Roy Slade and other similarly eccentric comedic characters.