My favorite grouchy characters:
The Grinch(How The Grinch Stole Christmas) - He's been my favorite grouch who wants to steal Christmas.
Grouchy Smurf(The Smurfs) - He's always my favorite when he always hates everything, but deep down, he does actually care in an certain episode(which I don't remember what episode).
Grumpy(CareBears) - As much as I miss the show, he's been my favorite due to his grouchiness, but he does have a caring side on certain episodes.
Gruffy(Gummi Bears) - Another cool show that I'll always miss which Gruffy has been my favorite when him being a grouchy jerk but later does have a caring side to others and he's funny when he always gets mad at Gusto(my other favorite character).
Mr.Wilson(Dennis the Menace) - He made be one the grouchy old neighbor that always hates poor Dennis, but he does have a soft side for the troublemaker like in the fitness gym episode.
Mr.Gronkle(Busy World of Richard Scarry) - I miss that show which he's an interesting grouchy warthog character who actually has a heart sometimes.
Squidward(Spongebob) - He's always my favorite on the show with his grouchiness hating poor Spongebob, but he actually cares for him like in that delivery episode when he helps Spongebob by bashing on that fish jerk when he wants a soft drink which I rooted for Squidward to let him have it since bad whiny customers are so annoying and when he moved to a city of Squidwards when he felt lonely and wanted to move back with Spongebob.
Ren Hoek(R&S) - He may be always grouchy on bashing on Stimpy alot which he's hilarious, but he did had a soft side in that Christmas episode when he give Stinky to a depressed Stimpy, and was actually worried about Stimpy being out in the freezing cold weather to find Stinky.
The Brain(Pinky & the Brain) - He's always my favorite due to his grouchiness/meaness towards Pinky's silliness which cracks me up.
Eustace(Courage the Cowardly Dog) - He's like Mr.Wilson who's the next grouchy old prick but the funniest whenever he's greedy & bashing on Courage.