Ghost whisperer...

[missjef]

Can anybody out there tell me the answer to 2 questions regarding this show:
1. i have been watching this on E4 and at the end of the past 2 episodes there has been a cloaked dark figure with a hat and a masked face all in black, can someone please tell me which episode he will appear in? And if you can, who is he?
2. It really bugging me and my mum this question - is Jennifer love-hewitt's hair a wig??

many thanks