The film offers a comprehensive examination of the exploitation of animals in modern society.
| Actor | Role |
|---|---|
 Julie ChristieNarrator (voice) | Narrator (voice) |
 Sandy DennisNot listed | Not listed |
| RRichard CourseNot listed | Not listed |
| RRobin HowardNot listed | Not listed |
| MMichael HuskissonNot listed | Not listed |
| RRonnie LeeNot listed | Not listed |
| TTom ReganNot listed | Not listed |
| RRichard RyderNot listed | Not listed |
| TTom SimonNot listed | Not listed |
| RRoger Elwood UlrichNot listed | Not listed |
| DDavid WettonNot listed | Not listed |