Neil Patrick Harris & David Burtka Become Batman Villains on Halloween

Neil Patrick Harris goes green while channeling the Riddler from the Batman series on Halloween (October 31) in New York City.

The 41-year-old actor was joined by his husband David Burtka, who did his best impression of another villain from the series, the Joker.

PHOTOS: Check out the latest pics of Neil Patrick Harris

“Happy Halloween from Gotham City!!” Neil wrote on Twitter with a pic of himself and David with their twins – Harper and Gideon. Check out the pic below!

10+ pictures inside of Neil Patrick Harris and David Burtka dressing up for Halloween…