|Series||My Little Pony|
|Location||Peach Creek Commons|
|Voiced by||Tabitha St. Germain|
Derpy or Ditzy Doo is a light bluish-gray Pegasus who was given the name "Derpy Hooves" by the show's internet following due to her having a cross-eyed "derpy" expression in the first episode. She is called Muffins in some merchandise.
On the day Fuse attacked Earth, Derpy decided to go for a short walk. She ended up leaving Ponyville and flying to Camp Kidney. There, she was ambushed by a Fusion Spawn, and she blacked out. She was woken up several hours later by the Slenderman. Derpy was terrified at first, but then realized that the mysterious man saved her from certain death, so she took a liking to him. Slenderman helped her out of the Slender Woods infected zone, and then led her to Peach Creek Commons, where she would be safe. Derpy still keeps contact with the Slenderman, but conversations between the two don't get very far, since Slenderman is mute.