The Grinch is a fictional character. He is a green, furry creature who lives on a mountain above the town of Whoville. He hates Christmas and decides to steal all the Christmas - related things from the Whos in Whoville.
The main character is the Grinch, of course. He's a green, furry creature who lives on a mountain above Whoville. Then there are the Whos. They are the happy - go - lucky residents of Whoville who love Christmas. Cindy Lou Who is also an important character. She's a young Who who catches the Grinch in the act of stealing Christmas, but her innocence makes the Grinch question his actions.
There are two main groups of characters in the 'grinch short story'. First, there's the Grinch. He's a solitary, bitter character who dislikes Christmas. Then there are the Whos. They are the happy, Christmas - loving residents of Whoville. They are kind - hearted and their positive attitude towards Christmas is what eventually changes the Grinch.
The main character is the Grinch, of course. He's the green, grouchy creature who hates Christmas. And then there are the Whos in Whoville. They are the happy - go - lucky people who love Christmas and all its trappings.
The Grinch would definitely be one of the main characters. And probably there would be a love interest for him, perhaps a character from Whoville, like a young woman or man who has a big heart and a lot of patience to deal with the Grinch's grumpiness.