[1] Glass grew up Jewish. In the film documentary Glass: A Portrait of Philip in Twelve Parts (2007) by Scott Hicks, Glass is informed by a journalist that he had been reported as Buddhist. He replies, "I read the same thing! You might say I'm a Taoist, I'm a Hindu, I'm Jewish, I'm Christian. I mean it's true I'm interested in all of these things but I can't say that I'm exclusively anything."
Father: Benjamin Charles Glass
Mother: Ida Gouline
Sister: Sheppie (older)
Brother: Martin Glass
Wife: JoAnne Akalaitis (theater director, m. 1965, div. 1980, two children)
Son: Zachary (b. 1969)
Daughter: Juliet (history professor, b. 1971)
Wife: Luba Burtyk (doctor, m. 1980, div.)
Wife: Candy Jernigan (d. 1991 liver cancer)
Wife: Holly Critchlow (restaurant manager, m. 2001)