The protagonist is the main character that the reader empathizes with, such as Spiderman. The antagonist opposes the protagonist and is typically portrayed as the "bad guy", such as Doctor Octopus who tries to kill people and destroy lives in opposition to Spiderman protecting citizens. An antagonist is someone who acts against the protagonist or the norm.

1. Protagonist
The protagonist is the main character in a story, novel, drama or other literary work,
the character that the reader or audience empathizes with.
Antagonist
The antagonist opposes the protagonist. In the most archetypical narratives, this boils
down to bad guy VS good guy. For example, Spiderman is trying to protect people
from the evil doctor octopus trying to kill the world and destroy thousands life's.
Antagonist means the one who acts against.
A protagonist is the main character in a story. Antagonist is someone that goes the
against the norm.

2. The protagonist The antagonist

3. Spiderman