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