An emotionally disturbed teenager whose father is a research scientist takes a rat from his father's laboratory that is infected with an incurable virus that can kill 100 million people in three weeks.
| Actor | Role |
|---|---|
 Ed NelsonNot listed | Not listed |
 Leonard NimoyNot listed | Not listed |
 George O'Hanlon, Jr.Not listed | Not listed |
 Gary MorganNot listed | Not listed |
 José FerrerNot listed | Not listed |
 Kathleen QuinlanNot listed | Not listed |
| MMarjorie LordNot listed | Not listed |
 Armand AlzamoraNot listed | Not listed |
 John MilfordNot listed | Not listed |
 Irene TedrowNot listed | Not listed |
 Stuart NisbetNot listed | Not listed |
 Squire FridellNot listed | Not listed |
 Marla GibbsNot listed | Not listed |
 Jennifer Lee PryorNot listed | Not listed |
 Paul SorensenNot listed | Not listed |
| EEddie Lo RussoNot listed | Not listed |
 Abraham AlvarezNot listed | Not listed |
 Tom McFaddenNot listed | Not listed |
| BBill SmillieNot listed | Not listed |
| LLois WaldenNot listed | Not listed |
 Keith WalkerNot listed | Not listed |
| LLouis James OliverGas Station Attendant | Gas Station Attendant |