Derpy Hooves

Derpy Hooves is depicted as a clumsy but well-meaning anthropomorphic pegasus with crossed eyes who works as Ponyville's mail carrier and occasionally assists the weather team, Derpy Hooves from My Little Pony: Friendship Is Magic does not have an officially canon mental disability. She is characterized as clumsy, scatterbrained, and goofy-looking due to her crossed eyes (which originated from an animation error), but the show's creators never stated she has a cognitive or physical disability, Derpy's cutie mark is a cluster of seven bubbles in various sizes, Derpy's cross-eyed expression originally started as an accidental animation error in the very first episode of My Little Pony: Friendship is Magic.