User blog comment:Paul.rea/Teen Wolf News 071117/@comment-174.54.50.194-20170714150632

I'm assuming that not every character that may be returning isn't in the trailer. I know all the big ones were there, like Stiles, Derek, Kate, Ethan, Jackson, and Gerard, but we know that Deucalian's back from some stills taken from the editing room and we know one trailer had Agent McCall on it so I'm assuming that there may be more. Personally, I'm holding out hope that Cora is back and er character just wasn't big enough to make it into the trailer.