Traveling businessman David Mann angers the driver of a rusty tanker while crossing the California desert. A simple trip turns deadly, as Mann struggles to stay on the road while the tanker plays cat and mouse with his life.
| Actor | Role |
|---|---|
 Dennis WeaverDavid Mann | David Mann |
 Jacqueline ScottMrs. Mann | Mrs. Mann |
 Eddie FirestoneCafe Owner | Cafe Owner |
 Gene DynarskiMan in Cafe | Man in Cafe |
 Lucille BensonLady at Snakerama | Lady at Snakerama |
 Tim HerbertGas Station Attendant | Gas Station Attendant |
 Alexander LockwoodOld Man in Car | Old Man in Car |
 Shirley O'HaraWaitress | Waitress |
 Carey LoftinThe Truck Driver | The Truck Driver |
 Charles SeelOld Man | Old Man |
 Amy DouglassOld Woman in Car | Old Woman in Car |
| DDick WhittingtonRadio Interviewer (voice) | Radio Interviewer (voice) |
 Dale Van SickelCar Driver | Car Driver |
 Lou FrizzellBus Driver (expanded cut only) | Bus Driver (expanded cut only) |
| SShawn SteinmanGirl on school bus (uncredited; expanded cut only) | Girl on school bus (uncredited; expanded cut only) |