Continuity mistake: At the end of the episode, when Elizabeth Stone is arguing with her daughter at the top of the stairs, her shawl goes from around her arms, to across her back, to completely gone several times from shot to shot.
Factual error: When they are flashing back on "Bobby" in 1948 the actor has 2 piercings in his left ear. Men wouldn't have pierced ears in 1948.
Revealing mistake: When Mr. Hathaway contacts Scotty as they dig up his son's bicycle, a shot of Hathaway shows Los Angeles' US Bank Tower in the background. The series is set in Philadelphia.
Factual error: In the flashback where the Hathaways realise their son is missing, the vehicles parked on the street and driveways are too modern for 1987.
Chosen answer: According to IMDb.com, it is Carly Simon.
Michael Albert