8. Why so Sirius
Helena Bonham Carter and Gary Oldman would have shed tears at this epic display of wizardry. Sirius Black and Bellatrix Lestrange may have been side-characters in the Harry Potter franchise, but they stole every scene they were featured in.
The two characters may have ultimately been on separate sides of the wizarding war, but they stemmed from the same bloodline. Their intensity, which was portrayed beautifully by the cosplayers, is unparalleled to any other character, thus making them a dynamic duo to portray together.