Egon's granddaughter who discovers her family's ghostbusting legacy.
Callie is Phoebe's single mother and eventually supports her supernatural investigation.
Callie moves to the inherited farm with her children, Trevor and Phoebe, after being evicted from their Chicago apartment.
The siblings become an active ghostbusting team.
Phoebe and Trevor move together with their mother and later work together during the supernatural crisis.
Grooberson becomes an adult scientific resource for Phoebe.
Phoebe enrolls in a summer science class taught by Grooberson, a seismologist.
Their friendship develops through shared curiosity and dangerous investigations.
Phoebe meets Podcast, shows him the ghost trap, and investigates the supernatural with him.
Lucky joins Phoebe's group during the escalating crisis.
Phoebe, Podcast, Lucky, and Trevor explore the mine and later travel there for the final confrontation.
Ray provides crucial historical information and later joins the final rescue.
Phoebe calls Ray Stantz using the Ghostbusters' telephone number and informs him of her grandfather's death; Ray explains the team's history.
Explore the full interactive character relationship map of Ghostbusters: Afterlife