The mechanized gorilla teeth and head gear worn by Hollywood actor and gorilla impersonator Ray “Crash” Corrigan in the movie White Pongo (PRC Pictures, 1945) represents an early, groundbreaking milestone in special effects and animatronics. Measuring roughly 9 by 14 inches, this internal rig allowed Corrigan to breathe dynamic, terrifying facial expressions into his custom-built rubber gorilla suits.
Instead of a static mask, the device used a highly detailed system of levers and armatures to mimic real muscle movements. The rig consisted of a metal headband and sidebars attached directly to a moving jawpiece. The jawpiece was outfitted with highly realistic, menacing resin teeth and gums. Thin mechanical wires and levers were fastened around the performer’s face beneath the heavy rubber mask. When Corrigan moved his own jaw and cheeks, the mechanical linkages would sync with his movements. This made the outer gorilla suit's mouth open, lips snarl, and nostrils snort on command.
While the bare metal armature looks incredibly eerie and skeletal on its own, this 1945 invention laid the baseline logic for modern creature suits. Mid-century monster icons like Ray “Crash” Corrigan built their own suits to maximize realism, pioneering techniques that legendary effects studios, like the Stan Winston School, later perfected for blockbusters like Congo and Jurassic Park.





































