Minions

Minions are small, yellow pill-shaped creatures which have existed since the beginning of time, evolving from single-celled organisms into beings which exist only to serve history's most evil masters, but they accidentally end up killing all their masters: rolling a T. rex into a volcano, letting a caveman get mauled by a bear, crushing a Pharaoh and his subjects with a pyramid, and exposing Count Dracula to sunlight. They are driven into isolation after firing a cannon at Napoleon while in Russia and start a new life inside a cave, but after many years, the Minions become sad and unmotivated without a master to serve. This prompts three Minions; named Kevin, Stuart and Bob, to go out on a quest to find a new master for their brethren to follow.