Happy 20th Birthday to Mckenna Grace! 🎂👻 From discovering her grandfather’s legacy as Phoebe Spengler in ‘Ghostbusters: Afterlife’ to saving New York City in ‘Frozen Empire,’ Mckenna has helped make Phoebe one of the defining characters of Ghostbusters’ modern era. #mckennagrace #happybirthday #ghostbusters #phoebespengler #actress