u/FuckWitTheToad

A lot of people asked the question who is in all the photos at the end of Season 4 p2 outro, but I can't find anyone asking about this person. The 4x4 grid of character images late at night about to go to bed, who the heck is this person? The rest are the Class 1A students, and Airi, but who is this? It's not Togata, it's not Bakugo, it's not Sojiro.
I personally have no idea who this is. Does anyone know? Am I just being dumb? All the 1A students are in their seat order, but Momo is 20th. Why is there a 22nd person?