Walter
Background
Walter Davison is the restless spirit of a former New York police officer in New York City. His daughter was Carly and his wife was Gina. Walter murdered both Gina and Carly when Gina told him that she was leaving him.
During the events of The Echo (2008) played by Kevin Durand
Bobby Reynolds gets on the elevator and Walter gets on the elevator with him. They get off the elevator and Walter walks to the apartment next door. During the evening, Bobby hears Walter yelling at Gina. Bobby knocks on the wall and asks if everything is alright and the arguing stops.
As Bobby is walking by Walter's apartment he hears Walter yelling at Gina and hitting her. Bobby listens next to the door and then runs inside his apartment when he hears the screaming stop. Walter then comes out of his apartment and walks to Bobby's door and stares at it before walking away. While taking a shower, Bobby hears Gina asking for help and when he goes to the door, she runs inside her apartment. He knocks on her door and asks her if she needs help and when he goes back to his apartment, Walter knocks on his door and tells him to mind his own business.
Bobby again hears Walter beating Gina and sees bruises on Carly's arms. Later, Alyssa knocks on Walter's's door and goes inside the apartment. The door locks behind her and as she tries to leave she is beaten by Walter's spirit. Bobby goes back to his apartment and the events of the day of the murders replay and Walter comes home from work to find Gina outside the apartment with suitcases. She tells him that she and Carly are leaving him and she starts screaming for help. Walter starts attacking Gina, but Bobby intervenes and this time Gina beats Walter to death. The spirits of Gina, Carly and Walter then disappear.