David is a small looking young teenager with dark shaggy hair and dark eyes. He's a bit of a book worm when it comes to biology and likes bird watching.
He's also a mutant. His senses are enhanced to an 'extreme' degree and he has no control over it yet. What he isn't yet aware of is he also has enhanced healing. He's not used to ever getting sick and isn't accident prone so he hasn't figured that out yet. Someday soon he will probably.