The Last Dinosaur

A wealthy oil magnate who funds the expedition and seeks both scientific discovery and personal glory. His drive and arrogance push the crew toward dangerous confrontations with dinosaurs, especially the T. rex. He remains fiercely loyal to his goal even as the valley consumes his plans.

A stubborn, capable geologist who survives the initial encounter and serves as the practical voice of reason among the group. His experience with the drilling accident proves crucial to understanding the valley's dangers. He often acts as the mediator between Maston and Frankie.

A Pulitzer Prize-winning photographer invited by the press pool. She uses her wit and charm to join the expedition, documenting events and shaping the crew's morale. Her presence introduces a human perspective within the peril.

A scientist who remains at the camp and attempts to study the environment. He falls victim to the T. rex's attack, highlighting the ever-present danger of the valley and the limits of timely science.

A Maasai tracker who brings essential survival skills and knowledge of tracking large mammals. He forms part of the core group’s defense and helps in their adaptation to the valley’s dangers.

A cavewoman who befriends the expedition members and helps Frankie with daily tasks. She embodies a bridge between two worlds: the modern explorers and the valley’s ancient inhabitants.

A large herbivore released by the T. rex after the Polar Borer’s destruction. It clashes with the predator, highlighting the struggle for survival among Cretaceous creatures in the valley.

The dominant predator in the valley who relentlessly hunts the humans and his adversaries. His presence drives the expedition’s most tense confrontations and tests the group’s courage.

A leader of the valley's cavemen who the group encounters and sometimes clashes with. He represents the primitive inhabitants who navigate the same harsh landscape.