obligatory latecomer

Name: Callahan
Sex: yes please
Age: 22
Appearance: [url=http://i.telegraph.co.uk/multimedia/archive/03092/SHOT_11_029__3092453b.jpg]maybe a younger version of Cumberbatch's Turing[/url]
Occupation: aspiring cryptologist. a fancy way of saying nothing useful
Improvised Weapon: hopeless
Equipment of Note: he did bring a laptop and a deck of cards
Character's Starting Location: running down the stairs from the top deck