The last one is from "Sign Here," who I've discussed before on this site. They appear to be a significant forgery outfit, and I have not seen one thing from them I even think could be real. I believe they think they're better forgers than they are.
The only signature I know is Rose Mcgowan's and they're fake. The first one you posted throws up a red flag with all the different sharpie colors that one is definitely a fake.