People Are Finally Learning Boo From “Monsters Inc's” Real Name, And I Had No Idea

What’s her real name?

The post’s author shared that “Boo’s real name is Mary, the same as the young girl, Mary Gibbs, who voices Boo.”

They added, “This is only just visible on one of the drawings Boo makes in Mike and Sulley’s apartment.” 

Film site ScreenRant confirmed the theory, calling the detail a “blink-and-you’ll-miss-it Easter egg.” 

Mary Gibbs, who has since voiced characters in fellow Pixar flick Inside Out, was only two years old when she starred in the 2001 movie. 

That meant a lot of the toddler’s “lines” were improvised ― and apparently, the production crew really did chase the toddler around the studio (like Sully and Boo did in the film) to record the appropriately adorable audio.