Board Thread:General Grimm Discussion/@comment-27347570-20160328134453/@comment-33188476-20160424052155

This is Reggie Lee's description of what Wu is: "Wu’s alter ego is “something that is not Wesen, but something that is caused by a virus” and “potentially permanent,” he says. “Wu goes back in evolution.”"

http://tvline.com/2016/04/22/grimm-wu-werewolf-season-5-spoilers-lycathrope-reggie-lee/