Sebastian Cristillo was born on October 27, 1879 in Italy. He was a producer, known for The Wistful Widow of Wagon Gap (1947). He was married to Helen Cristillo. He died on May 9, 1947 in Los Angeles, California, USA.
He had three children with his wife, Lolly: son, Lou Costello; son, Pat Costello; and daughter, Marie Katherine (born December 8, 1912; died July 8, 1988).