Shrek

Shrek is the main protagonist of the film series and the book of the same name.

Overview
Shrek is a large green skinned ogre with a Scottish accent; although his background is left as a mystery in the films, it is revealed in the book and its musical adaptation that Shrek was forced to leave from his parents at his 7th birthday since it is part of the ogre culture. Shrek lives in his comfortable life in the swamp scaring off the humans who entered his territory; despite this, he wants peace and quit in his home and would do anything whoever sets foot in his swamp. Right after his marriage with Princess Fiona, he seemed to tone down his behavior since most of the people don't find him frightening; which this makes him unhappy that they view him as a friendly giant.