A young boy lets the animals out of their cages at the Zoo, to set them free, but the animals start taking over the town.
| Actor | Role |
|---|---|
 Jay NorthChris Carlyle | Chris Carlyle |
 Martin MilnerDr. Del Hartwood | Dr. Del Hartwood |
 Andy DevineBranch Hawksbill | Branch Hawksbill |
 Joyce MeadowsIsobel Moon | Isobel Moon |
 Jim DavisAdam Carlyle | Adam Carlyle |
 Dorothy GreenAnne Carlyle | Anne Carlyle |
| KKaren GreenWilma Carlyle | Wilma Carlyle |
 Vaughn TaylorCouncilman Pew | Councilman Pew |
| WWayne ThomasNewscaster | Newscaster |
 Eddie QuillanMan Watching TV | Man Watching TV |
 Percy HeltonMr. Richardson | Mr. Richardson |
 Jon LormerJudge | Judge |
| HHarlan WardeUncle Travis | Uncle Travis |
 Robert LoweryPreston Heston | Preston Heston |
 Vince BarnettMan in Manhole | Man in Manhole |
 Marjorie BennettStout Woman | Stout Woman |
 Marshall ThompsonShaving Man | Shaving Man |
 Leoda RichardsCourtroom Spectator | Courtroom Spectator |
 Tracy StratfordLittle Girl | Little Girl |
| JJerry SchumacherPolice Officer | Police Officer |
| MMerritt BohnChief of Police | Chief of Police |
 Elizabeth HarrowerTown Gossip | Town Gossip |
| DDal JenkinsKookie | Kookie |