If we’re talking about people who are just stand ins, it’s not necessary for them to fully look like the character. They’re not always in costume and height/weight/hair can be much more approximate.
But! Stand in jobs are in a lot of cases preformed by photodoubles
my contribution to the eddie lore is he isn’t allowed to have capri-suns in the trailer because wayne got sick and tired of that damn boy finishing a pack in less than two hours
never noticed how smushed together robin and eddie’s cheeks are after he catches her fall in the upside down until now and now i want to eat concrete i love them both so much :(