A dog that is a minion of Satan terrorizes a suburban family.
| Actor | Role |
|---|---|
 Richard CrennaMike Barry | Mike Barry |
 Yvette MimieuxBetty Barry | Betty Barry |
 Kim RichardsBonnie Barry | Bonnie Barry |
 Ike EisenmannCharlie Barry | Charlie Barry |
 Victor JoryShaman | Shaman |
 Lou FrizzellGeorge | George |
 Ken KerchevalMiles Amory | Miles Amory |
 R.G. ArmstrongDunworth | Dunworth |
 Martine BeswickRed-Haired Lady | Red-Haired Lady |
| BBob NavarroNewscaster | Newscaster |
| LLois UrsoneGloria Hadley | Gloria Hadley |
 Jerry FogelDoctor Norm | Doctor Norm |
 Warren MunsonSuperintendent | Superintendent |
| TTina MenardMaria | Maria |
| KKevin McKenzieJoe | Joe |
 Bill ZuckertMr. Lomax, Dog Breeder | Mr. Lomax, Dog Breeder |
| SShelley Curtis1st Cultist | 1st Cultist |
| DDeborah Karpf1st Girl | 1st Girl |
 Jan Burrell2nd Cultist | 2nd Cultist |
| JJack CarolScottie the Gate Guard | Scottie the Gate Guard |
| DDana Laurita2nd Girl | 2nd Girl |
 James ReynoldsPoliceman | Policeman |
| EE.A. SirianniCultist in Car | Cultist in Car |
 Gertrude FlynnNot listed | Not listed |
| FFredrick FranklinNot listed | Not listed |
| DDaniel SelbyNot listed | Not listed |