The gorilla, nicknamed George is an 8' 4" animated gorilla figure that has been located in various Lagoon attractions since 1966.
The gorilla was originally part of the Haunted Shack, and was later placed inside Terroride. It was later removed from Terroride and was frequently seen during Frightmares. In 2017 it was placed inside of Dracula's Castle.
Gorilla at the Lagoon history project.