Terri and Terry Perry

Terri and Terry Perry are characters in Monsters University. They are yellow four-armed siamese brothers with horns and orange stripes on their tentacles, and students at Monsters University, as well as members of the Oozma Kappa fraternity. Terri is the smallest and has one horn; Terry has two horns.

Official Bio
"When it comes to Terri and Terry, it’s hard not to ask, “Are two heads really better than one?” These bickering brothers have little in common: Terri with an “i” is a real romantic who’s quick to spot the silver lining in any situation, while older brother Terry with a “y” sports a more cynical outlook on life. If they can stop squabbling long enough to work with their Oozma Kappa brothers—they might be able to put their heads together—literally—and find their place in Monsters University’s Scare Program once and for all."