Lock, Shock, and Barrel are characters from the movie The Nightmare Before Christmas. They are a trio of mischievous children who serve as henchmen to Oogie Boogie.
- Lock is the leader, dresses in a red devil costume with a real devil's tail, sharp teeth, narrow face, and hair shaped into two horns. He likes being in charge but doesn't always think things through thoroughly.
- Shock is the only female of the trio, wears a purple witch costume with a tall hat, has pale-green skin, a long pointed nose, and wiry violet-blue hair. She is cunning, intelligent, and often takes the lead in plans.
- Barrel is the youngest and considered the "star pupil," dressing as a skeleton. He has white skin, sunken eyes, green coiffed hair, and deformed feet. He is less intelligent but tries to be innovative and is often the butt of jokes.
They are comedic troublemakers rather than truly evil villains and serve Oogie Boogie primarily out of fear. Their names are a play on the phrase "lock, stock, and barrel." They were responsible for kidnapping Santa Claus in the film.