Akinator, The guessing computer dude.

[Albertosaurus Rex]

Did you submit him to the database? That's how his knowledge grows...

EDIT: Hey, they changed the Fitz picture!

EDIT #2: This is brilliant. I thought of Cameron Mitchell (from Stargate SG-1) and Akinator came up with John Sheppard (from Stargate Atlantis). I kept him guessing and he came up with John Crichton (a character from Farscape played by the same actor as Mitchell) and finally guessed Jack O'Neil (SG-1 again) before giving up.