In the 1985 zombie film Day of the Dead, the unusually intelligent zombie is named Bub.
Bub is studied by scientist Dr. Matthew Logan and his assistant Sarah Bowman inside an underground military bunker. Unlike most of the film’s undead, Bub shows signs of memory, learning, emotional response, and limited obedience. His behavior challenges the assumption that zombies are incapable of thought.
George A. Romero wrote and directed Day of the Dead, the third film in his original Living Dead series. The story focuses on conflict between military personnel and scientists as they struggle to survive after civilization has collapsed.
Bub is played through a combination of actor Howard Sherman’s performance, prosthetic makeup, and directed physical behavior. He is not presented as fully human or cured; his importance comes from demonstrating that the undead may retain or develop recognizable patterns of learning and attachment.