Caroline Prime is the secondary antagonist of Scooby-Doo! Moon Monster Madness.
Caroline Prime was a giant-wheeled robot created by Hudson Baron to help him on Sly Moon Prime. Shannon Lucas sabotaged it to turn against the others after trapping them on Sly Moon Prime, which had thermal charges planted all over. Scooby-Doo and Shaggy Rogers helped U-Boat destroy Caroline by throwing dozens of large crates at it.
Caroline Prime was very powerful thanks to its gigantic size, being able to smash through objects with its retractable arms. It was also able to project laser beams from its red eyes.
Caroline Prime is the most recent robotic Scooby-Doo villian.