OK, this is another "who?" unless you watch programmes that adults probably shouldn't watch. Seth is one of the stars of "Buffy the Vampire Slayer" and he's a werewolf. OK, there's no need for that muttering in the back there!
So, here we go:
Lowdown on Seth Gesshel-Green:
- Date of birth: 8 February 1974
- His birth was filmed (I feel faint) and used in a national childbirth campaign.
- Plays a character called Oz (Daniel Osborne) in "Buffy the Vampire Slayer" and does that weird werewolf thing. Don't ask.
- Has been in quite a few films, including:
Austin Powers: International Man of Mystery
Hotel New Hampshire
Enemy of the State
Our pearls of wisdom:
Another one who keeps messing with his hair. Stop, stop, stop or you'll end up bald. 
Oh dear
Had to show this just because it made me laugh

Silly, silly hair!