Calificación
Reparto

Robert Graysmith
Himself - Author of 'Zodiac' and 'Zodiac Unmasked'

Arthur Spinelli
Himself - Former Solano County Saloon Owner

Donald Cheney
Himself - Former Friend of Arthur Leigh Allen

Sandy Panzarella
Himself - Friend of Donald Cheney & Acquaintance of Arthur Leigh Allen

Norman Boudreau
Himself - College Friend of Arthur Leigh Allen

George Bawart
Himself - Vallejo Police Dept (Ret)

Sharon Pagaling Hagon
Herself - Criminal Profiler

Donald Fouke
Himself - San Francisco Police Dept (Ret)

David Slaight
Himself - Napa County Sheriff Dept (Ret)

Nancy Slover
Herself - City of Vallejo '355' Operator

Kim Rossmo
Himself - Research Professor, Department of Criminal Justice, Texas State University