Daymare: 1998 swaps the player between three characters to tell their individual stories.
Liev is a Russian-born H.A.D.E.S. special agent who cares only for his mission.
Raven is a former NASA pilot whose comrade was killed in a failed mission. He now flies for the Hexacore air force.
Sandman is a agent for H.A.D.E.S..
Cleaner is a scientist.
Dr. Atherton is a scientist.
Dr. Mason is a scientist.
John Fay is a scientist.
Samuel is a forest ranger who suffers from "Daymare Syndrome" and was caught up in the events of Daymare: 1998 with the rest of Keen Sight.
Al Powell is a security guard for Aegis.