Phoebe's older brother who learns to drive the Ecto-1.
Callie is Trevor's mother and guardian.
Callie relocates to Summerville with Trevor as part of the family move to the inherited farm.
The siblings become an active ghostbusting team.
Phoebe and Trevor move together with their mother and later work together during the supernatural crisis.
Trevor's attraction to Lucky motivates his social involvement in Summerville.
Trevor becomes infatuated with Lucky after meeting her at the local drive-in.
Explore the full interactive character relationship map of Ghostbusters: Afterlife