Watch Mark Hamill and Kevin Conroy record for Arkham City, destroy the fabric of reality

This voice acting-oriented episode of Inside Rocksteady Studios is the first time we personally have ever seen either the Joker or Batman's voices come out of real human bodies, and suffice to say that oh man is it weird.

It's almost like Batman and the Joker are providing voiceovers for Kevin Conroy and Mark Hamill, instead of the other way around. Seeing the Joker's spooky laugh come out of a hunched-over Mark Hamill is an image that'll stick with us for a while, and his cheshire cat grin didn't help much either. The video also features Stana Katic (Talia in Arkham City and Detective Becket on Castle), but seeing her perform isn't so much of a head trip, considering that it's basically just Detective Becket with an undercover accent.