What a class act. While Stan Lee might not have even remembered creating the character Groot back in 1960, we can’t really blame him. After all, he was the mind behind countless iconic Marvel characters over the years. But regardless, it’s clear that James Gunn loved working with him for his pair of Guardians of the Galaxy cameos. Unfortunately, the upcoming third movie will mark the first installment in the franchise without an appearance by the great Stan Lee. Sorry, true believers.