Is that a standard size door? What are you, like 6”10, 7+? Shit, paint yourself white and go as Kratos. Or hell, if you can afford it, get a custom Warhammer 40K suit and go as a space marine.
LOTR- Giant Dwarf
LOTR- Gondor Soldier
ASOIAF- Duncan the Tall
Marvel- Cpt America
X-Men- Juggernaut
Marvel- Ego
Marvel- Dr Strange
X-Men- Bearded Night Crawler
Star Wars- Any Jedi or Sith
Walking Dead- Rick Grimes
Witcher- A Witcher or Mage
Fezzik from Princess Bride