Houston Texans wide receiver DeAndre Hopkins as an Avatar person
There's a fine line between try-hard and cool. This one is borderline, but Hopkins' Instagram caption - "Avatar my lifestyle" - is funny and self-aware enough to edge it towards cool.
Lonzo Ball as Batman
Can Lonzo Ball be the Batman to LeBron James' Superman at the Lakers this year?
LeBron James as Jason
Speaking of the King...
WNBA star Chiney Ogwumike as Serena
Stick to sports.
Klay Thompson as Jackie Moon, Will Ferrell's character in "Semi-Pro"
Klay Thompson is awesome.
Angel Di Maria as First Man
Former Manchester United and Real Madrid star Di Maria just won Halloween.
Throwback Thursday: Russell Westbrook as Steven Adams
Remember when - criminally self-serious and unfun - Russell Westbrook dressed up as his teammate and Kiwi basketball star Steven Adams? Halloween truly is a magical day.
Chicago Cubs outfielder Matt Szczur as Matt Szczur
But some athletes stay boring even on Halloween.
Bonus fan costume: Gritty
Shouts to this fan. #grittyisgod