Who is the protagonist in the 'Who's Out There' short story?

I don't know. There are many short stories with that title or a similar concept, and without more information, it's impossible to determine the author.

I think it depends on which specific short story by Welty you're referring to. Different stories have different protagonists.

I'm not sure specifically as I haven't read this exact short story. But typically, there could be a protagonist who is the one breaking out of the silence. There might also be a supporting character, like a friend or a family member, who either helps or hinders the protagonist in their journey out of silence.

I'm not sure without reading the story, but it could be a lone traveler. A single character often makes for a good focus in a story about a long journey.

Perhaps they are brothers and their close friends. The brothers often hang out with this group and this particular night out is filled with family - like bonding, lots of laughter and shared secrets.

It could be a young adult who is walking out of adolescence and into adulthood, facing new responsibilities and freedoms.

The protagonist in 'The Lottery' is Tessie Hutchinson.

It's hard to say for sure, but maybe it's Jorge. His character undergoes significant changes and has a major influence on the story's outcome.

Well, in the short story 'Who's There,' the main character is hard to predict. It might be a detective solving a mystery, a traveler in a strange place, or even an animal with an adventure to tell.

Perhaps it's a character who is in contrast to the man of iron. This character might be more fragile or indecisive, and through the story, we see how the man of iron influences him or her. So, in a way, this other character could also be considered as a protagonist as the story might be about their transformation under the influence of the man of iron.