User blog comment:LoveWaffle/Sweet Merciful Crap, This Is What Viper Looks Like in The Wolverine/@comment-4966384-20121013040756

To be fair, if this is a actual picture of Viper (and I have no reason to doubt that it is) the actual reason her hair may be in a bun is simply because she is going to wear a long green wig. After all it seems unlikely that they would make her dye her own hair a dark shade of green when high quality wigs are available for the costume crew to use.