i apologize, riddlesbae hasn't posted any more parts to the series since i uploaded this video. it didn't seem to me like the end, but i guess it was? i am not sure but there will not be a part two to this!
He is a fancast character that was made up by the harry potter fandom so "Mattheo" isn't technically in any film, but he looks / acts like the character Marcus Lopez in the show deadly class (on prime video, netflix, or soap2day). That's where these clips are from! The actor is Benjamin Wadsworth :)