Buttermilk is Ketta's pet dinosaur and a recurring character in Breadwinners. She made her debut in "Rocket Trouble" as a cameo, and was first called by name in "Kettastrophe."
She is a huge, purple, baby dinosaur with a beak. She is very loyal to Ketta. And with her new invention, a mechanical purple helmet, she can teach her any trick imaginable.
- Buttermilk, Poofie, and Jelly are the only female pets shown throughout the series.
- Unlike many dinosaurs shown at Volcano Valley, Buttermilk has a beak.