Central protagonist and NYPD detective who transitions from a grieving father investigating his daughter's murder to a seasoned investigator tracking a new serial killer targeting couples across Europe.
Investigates Marina as a key member of Simon's criminal circle.
Long-standing nemesis and primary antagonist in the European murder spree.
Former husband and wife with unresolved emotional ties driving the rescue mission.
Explore the full interactive character relationship map of The Postcard Killer