Father of Anna Dover who becomes desperate after her disappearance. He kidnaps and tortures Alex Jones in an abandoned building to force information out of him. His investigation leads him to Holly Jones's home, where he discovers his daughter's whistle and is subsequently shot and imprisoned by Detective Loki.
Keller is Anna's protective and obsessive father.
Loki investigates Keller's household as part of the missing persons case.
Keller illegally detains and tortures Alex for information.
Franklin temporarily partners with Keller in their illegal search.
Keller holds Joy prisoner alongside Anna in his secret location.
Taylor's house contains evidence directly linking to the missing girls.
Explore the full interactive character relationship map of Prisoners