Gary Bowman (Teenage Kemper), Kevin Convery (Patient in mental hospital), Kevin Charles Gauntner (Kemper's Father), Ed Kemper (Himself), Ron Parson (Police Academy Student), Sean Patrowich (Detective reenactment), Heather Plank (Sally Hallett), Derrick M. Redmond (Police Officer), Danielle Ruch (Rosalind Thorpe), Donna White (Mother Clarnell Kemper)