Billy Watson

Billy Watson is main protagonist on Billy 10.

Appearance
Billy takes the appearance of a teenage boy. He has messy, black hair and green eyes, but he wears a long-sleeved white T-shirt with the number 10 in green. He wears the Omnitrix on his right wrist.

Personality
Billy is a brave and smart kid. He will often throw himself into a situation without thinking it through and get stumbled on problems however the obvious comes to him eventually and he tends to figure it out.

In And Then There Were A Heroes. Bart Modell was inpesed by his incredible intelligence.