Never played Team Fortress 2, but I've seen it played and I've watched the videos of the characters a few times. They're all really fun-looking in their own way. My favorite has to be the scout, though.

Unfortunately, Fibra isn't scout material. Definitely would be the medic...and probably have fun running around shooting/healing people once he figured out what he's supposed to do.

Those little glasses. Hnnggg adorable. <3

This was a lovingly-done sketch at work one day, colored over with photoshop.

Fibra © zerna
Team Fortress 2 © Valve