Board Thread:False Info and Speculative Discussion/@comment-2245905-20140610223340/@comment-25243147-20140801111136

Let's think like Stiles and be systematic. The Teen Wolf Writers' Code could be this: "The Big Bad shall be right under their noses." To put it another way, the Big Bad must have appeared during the season.

Here are all characters that are still alive that appeared in episodes S04E01 through S04E06, in alphabetical order by given name, if known:

Alan Deaton (veterinarian) Araya Calavera (werewolf hunter) Bobby Finstock (lacrosse coach) Braeden (mercenary) Brett Talbot (beta) Chris Argent (werewolf hunter) Deputy Haigh (sheriff's deputy) Derek Hale (beta) Jordan Parrish (sheriff's deputy) Kate Argent (werejaguar) Ken Yukimura (father of Kira) Kira Yukimura (kitsune) Liam Dunbar (beta) Lydia Martin (banshee) Malia Tate (werecoyote) Mason (friend of Liam) Melissa McCall (mother of Scott) Ms. Fleming (math teacher) Natalie Martin (mother of Lydia) Noshiko Yukimura (kitsune) Peter Hale (beta) Rafael McCall (father of Scott) Scott McCall (alpha) Severo (Araya's right-hand man) Sheriff Stilinski (father of Stiles) Stiles Stilinski (human)

Based on the Writers' Code, one of these 26 is the Benefactor. Now we can start to eliminate.