Bingo Bongo

The titular figure, a man raised by chimpanzees who blends animal instincts with emerging human intelligence. He is incredibly strong, perceptive, and emotionally vivid, yet struggles to fit fully into human society. He develops a crush on Laura and ultimately asserts himself as an ambassador for animals by speaking their languages and pushing for humane treatment.

A researcher at the Milan institute who tries to bridge Bingo's world with human society. She demonstrates patient, compassionate resolve, yet grapples with affection and professional boundaries as Bingo's feelings complicate their dynamic. Laura believes in integrating Bingo rather than confining him, and her choices shape his path toward acceptance.

Laura's chimpanzee companion who bonds with Bingo. Renato serves as a bridge between human understanding and animal kinship, revealing how animals can influence human decisions. The character embodies loyalty and the social complexity of caring for a non-human friend.

A physician at the institute who studies Bingo's capabilities and observes the moral and practical implications of the research. He represents scientific curiosity and the push-pull between control and empathy as Bingo's intelligence disrupts expectations.

A professor at the institute who embodies institutional authority and curiosity about Bingo's place in humanity. He weighs skeptical, methodological concerns against the possibility of genuine breakthrough and the ethical questions raised by Bingo's humanity.

A doctor at the institute who helps supervise Bingo's confinement and experiments. He reflects the routine of research life and occasionally the tension between professional detachment and moral concern for Bingo.

A maternal figure encountered in the hospital setting who cares for the newborn. Her presence adds a note of care and humanity within the institutional environment and hints at the broader social world outside the research facility.

A supporting character within the film's social circle who participates in the world surrounding Bingo and Laura, illustrating the randomness of human encounters in the story.