Ralph Foody as Johnny
Johnny is not a character who joins the McCallister family’s Christmas celebration in Paris, France. He is part of a fictional movie within Home Alone, specifically “Angels with Filthy Souls.” Kevin is not allowed to watch this film, given his young age.
There’s a bit of lore surrounding Johnny’s character, such as how he killed Acey before the Snakes arrived. Interestingly, once again, Johnny returns in the Home Alone sequel as part of a movie within a movie.