Respuesta :

An archetypal character is a happy joyful character 
 (a main character that is always happy and wants you to step on his lawn)
And a stock chaircter would be a villain
 (an old man who yells at you to get off his lawn)

Answer:

The difference between an archetypal character and a stock character is the following: an archetypal character is a universal character type common across all genres; while a stock character is a character common in only certain genres.

I answered it on edge2020, and got it right. Hope it helps! :)