Is the Joker a homicidal, nihilistic supervillain, or a prankster lashing out to mask his insecurities? Most comic book fans would opt to describe him as the former. Despite that commonly accepted interpretation, the upcoming video game Suicide Squad: Kill the Justice League portrays the famed Batman arch-nemesis as the latter. The game is famously (or rather infamously) set within the same universe as the critically acclaimed Batman: Arkham series. The original Joker of this fictional world — who was not at all insecure — voiced by Mark Hamill, died earlier in the series. This new Joker, ac…