Tessie is the main Protagonist throughout the story, this is her showing up to the lottery late saying "Thought we were going to have to get on without you, Tessie."
the antagonist of this story is the community, "Well, now." Mr. Summers said soberly, "guess we better get started, get this over with, so's we can go back to work. " which just shows how the community all works together against her.
Tessie Hutchinson is the one that was chosen in the lottery, "It isn't fair, it isn't right," is the last thing that came out of her mouth before being stoned