Jonathan Groff as Holden Ford
Holt McCallany as Bill Tench
Anna Torv as Wendy Carr
Cotter Smith as Shepard
Sonny Valicenti as Dennis Rader
Hannah Gross as Debbie Mitford
Cameron Britton as Edmund Kemper
Happy Anderson as Jerome Brudos
Stacey Roca as Nancy Tench
Joe Tuttle as Greg Smith
Jack Erdie as Richard Speck
Sam Strike as Monte Rissell
Albert Jones as Jim Barney