Time Baby

The Time Baby is a giant, time-manipulating being from Gravity Falls.

He is the last of his kind -- an extinct race of time giants -- and weighs approximately 9 trillion tons. At some unknown point in the past, the Time Baby was frozen in a glacier in the Antarctic. Due to global warming, he was thawed out in the distant future and started causing havoc upon human civilization.

Trivia

 * The Time baby gets easily distracted by jangling keys.