Dreyfus is a supporting antagonist in the Planet of the Apes reboot trilogy, serving as the secondary antagonist of Dawn of the Planet of the Apes, and a posthumous antagonist in its sequel War for the Planet of the Apes. He is a former police officer, the co-founder of a small community of humans in San Francisco who genetically survived the Simian Flu outbreak, and leader of the Human Resistance. Although not necessarily evil by any means, he is more than willing to take extremist measures in order to save and protect humanity, including wiping out Caesar's colony of apes.