The one in the middle is Sparty, and he always remains in character. And by this I mean, always walks around making primitive "shake fist in air to signify victory" gestures to all and sundry. Often frightens small children. It's awesome.
The one with her gob open yelling at the photographer. You guessed it, that's me. (Where's the bushy hair? I got it summarily hacked off the day before. So there.)
From left to right you also have Lis (creative genius of knitted headbands, and winner of sexiest running shirt); Corinn, creative genius behind Dago-Fest 2006, Sheila, who made us all do it, and Jen, designer of this little gem for the t-shirts: