Teo is the tough guy of the group, he tries to stay quiet in the background while just watching his surroundings but when put in a comfortable situation among his friends he tends to have  a loud mouth with a lot of sass towards Jasper. He's more of the older brother attitude, while he may pick on the others for fun and give them a bit of trouble, he's always there to back them up when they need it. He's not a very emotional person, usually forced to give people hugs by being trapped in their arms against his will. Teo isn't one to get close to anyone outside of the friends, usually staving off those who try to talk to him at all possible junctions . He has a tough and sarcastic  outer shell but under that everyone knows he's a big softy. He will always stick up for someone if he think that something unfair is going on or if he feels they need some protection from themselves--and it doesn't really matter who they are. The thing that tends to get him in trouble the mouth are his quick witted remarks, usually at the expensive of whomever he's telling the joke about. He's a calm person, a bit monotone and apathetic at times when he's separating himself from a situation, but all in all, he's caring and sweet--usually against his own will. 

Teo has a slightly harsh voice, but nothing to severe just a bit of rasp every once in a while. I'm also okay for a clearer smooth voice, I'd love to hear both if possible! He likes to speak with a biting edge of sarcasm, so try and make your inflection either slightly cold, sarcastic, or monotonous when you feel it's applicable. But he does not necessarily speak like that all the time. Mess around with it and find a balance for yourself.I believe that his character will be best personified with a lower range, but medium would probably work just as well for him. Interpretation are, of course, welcome so give it your best shot!