Lt. Robin Crusoe U.S.N.

A skilled Naval Aviator who crashes on the island and must adapt to survival life. He demonstrates leadership, wit, and stubborn resourcefulness as he builds shelter, crafts gear, and forges a tenuous alliance with Floyd. His humor helps defuse danger, even as he renegotiates his relationships with the island's inhabitants.

An intelligent island girl who meets Crusoe and embodies the island’s dual pull between tradition and modern longing. She resists an arranged marriage while offering loyalty and curiosity to Crusoe. Her presence deepens the island's social tensions and romantic subplots.

The island's chieftain and patriarch who enforces ritual authority and fears losing control over tradition. His plan to sacrifice women to the Kaboona statue reveals a ruthless streak guarding ancestral power. His eventual clash with Crusoe triggers a fragile peace built on negotiation rather than conquest.

Crusoe's unlikely companion who brings a slice of space-age science to a tropical survival tale. Floyd helps with tasks, learns from Crusoe, and symbolizes how modern knowledge can intersect with wilderness life. The chimp's presence adds humor and a practical assistive role to survival efforts.

A quirky, enigmatic figure who punctuates the island's oddities and adds a touch of whimsy to Crusoe's misadventures. His presence hints at the unpredictable mix of characters a castaway might encounter. He contributes to the film's lighter, comedic tone.

The captain associated with Crusoe's naval mission, whose authority and actions anchor the return to civilization. His role underscores the pull between wilderness survival and the pull of the aircraft carrier. He also represents the broader military world beyond the island.

Crusoe's companion in the air during the mission who shares the ordeal of the ejection and survival. He embodies teamwork, loyalty, and the practical problems of piloting and survival in hostile environments.

Another member of the island's native presence who contributes to the island's cultural fabric. She interacts with Crusoe and Wednesday, helping shape the island's social dynamics.

A second native girl who shares the island's community and rituals, adding depth to the portrayal of island life and tradition.

A Navy crew member who anchors the shipboard world back home and witnesses Crusoe's island misadventures from a distance. His perspective highlights the contrast between mission discipline and survival improvisation.