Cthulhu

Cthulhu is a worshipped cataclysmic entity originating from R'lyeh. He first appeared in H.P Lovecraft's "The Call of Cthulhu".

In Chris the Stick Adventures
Cthulhu is summoned by Joey and Derp as an attempt to aid Chris the Stick to break open a set of crab legs in Dinner for Two. Instead of helping, Cthulhu attacks Huetown on his way to The Chop to attack Chris and Blanca who are dining.

He is banished to another dimension when Chris and Blanca trick him into entering a portal Blanca conjured.