The Missing Link

A clever, talkative dragon who appears in a perilous moment near a tar pit. O helps the dragon breathe fire by inserting a cork, after which the dragon expresses gratitude and provides a brief moment of humorous relief in the journey.

A member of the tech-obsessed No-Lobes clan who briefly hosts O. The encounter highlights the tribe’s dependence on tools, and O’s chaotic influence leads to the destruction of their crops with the wheel and his eventual expulsion.

Another No-Lobes member encountered by O, representing the same technology-driven society. This character reinforces the idea of a community built on tools and order, which is disrupted by O’s antics.

A brontosaurus who befriends O after their first meetings. He seeks belonging among his own kind, but is rejected for smelling like 'man', prompting a deeper exploration of identity and acceptance as he pursues O.

A baby pterodactyl who becomes O’s ally and mentor in some ways. He helps O learn about the world and, at times, gives him the courage to pursue new experiences like flight.

The central character who evolves from a brontosaurus-like being into a man. His journey includes friendships, jealousy toward Croak, leadership, and ultimately a controversial arc as he seeks his own tribe and confronts Igua.

A minor member of the caveman world who appears in various scenes. While not deeply explored in the summary, Bone contributes to the sense of a bustling primitive community.

A caveman character who participates in the daily survival stories and tribe dynamics. He represents the everyday people around O as events unfold.

The narrator guides the audience through the prehistoric odyssey, anchoring the surreal events with a storyteller’s voice and providing context for the unfolding journey.

A member of the ensemble cast who appears in scenes within the larger animal-and-human world. His role contributes to the film’s quirky and comedic rhythm.