The Gasman (also called Gazzy) is an eight year old boy. He is a very energetic character-- most of the time-- and also constantly trying to act like he is older than what he is. I normally would say only female voice actors should be auditioning for this since he is so young, but males if you want to try to act like a prepubescent boy go for it. Just give it your best shot to sound like a young boy.  Also he is the older biological brother of Angel (the only two that are blood related) so he is very protective over her character.