, but Astin discovered through a DNA test in the 1990s that his biological father is music promoter Michael Tell, who was married to Patty Duke in 1970. Sean was raised by his stepfather, actor John Astin, who married Patty Duke in 1972 and whose surname Sean took. Sean's mother was ...
Sean’s biological father is Jewish (of Austrian Jewish and Polish Jewish descent). Sean’s mother, who was raised Catholic, was of seven eighths Irish and one eighth German descent. Sean is married to producer Christine Harrell, with whom he has three children, including actressAli Astin. Se...
, but Astin discovered through a DNA test in the 1990s that his biological father is music promoter Michael Tell, who was married to Patty Duke in 1970. Sean was raised by his stepfather, actor John Astin, who married Patty Duke in 1972 and whose surname Sean took. Sean's mother was ...