During a future ice age, dying humanity occupies its remaining time by playing a board game called Quintet. For one small group, this obsession is not enough. They play the game with living pieces, and only the winner survives.
| Actor | Role |
|---|---|
 Paul NewmanEssex | Essex |
 Vittorio GassmanSaint Christopher | Saint Christopher |
 Fernando ReyGrigor | Grigor |
 Bibi AnderssonAmbrosia | Ambrosia |
 Brigitte FosseyVivia, Essex's Wife | Vivia, Essex's Wife |
 Nina van PallandtDeuca | Deuca |
 Craig Richard NelsonRedstone | Redstone |
| DDavid LangtonGoldstar | Goldstar |
 Thomas HillFrancha | Francha |
 Monique MercureRedstone's Mate | Redstone's Mate |
| MMaruska StankovaJaspera | Jaspera |
| AAnne GeretyAeon | Aeon |
| MMichel MaillotObelus | Obelus |
| MMax FleckWood Supplier | Wood Supplier |
 Françoise BerdCharity House Woman | Charity House Woman |
 Emil GlassbourgLost Soul (uncredited) | Lost Soul (uncredited) |