Neil Patrick, husband David Burtka and their adorable kids are no strangers to stunning Halloween costumes. Over the years, they've gone all out with their looks -- much to the delight of fans -- and this year was no different.
Harris tweeted a photo of himself with his family as characters from Batman, with Harris as the Riddler, Burtka as the Joker, son Gideon as Batman and daughter Harper as Catwoman.
Last year Harris and the gang went as classic horror movie monsters.
You know what they say -- the family that dresses up together, stays together.
Clarification: An earlier version of this article stated that Harper was wearing "what appeared to be" a Batgirl costume. It is a Catwoman costume.