Looks like a grade QH to me.
Maybe a little TB in there but all in all looks like a QH.
P.s. Just because he does not act like your TB does not mean he is not a TB although most horses behaviors have to do with there breed there are those rare few who are "rare"! Also depending on the pureness of the lines determines the "look" of the horse. I also wanna point out JUST BECAUSE IT MAY BE A TB DOES NOT MEAN IT IS GOING TO BE A HARD KEEPER, although it is more common to find "hard keepers" in the TB breed I would not say that is a known fact about the breed/all TB, I have known many TB to be VERY easy keeps.
Now that I look at his picture again he kinda looks like a gelding my friend has that is Req. Paint LINKS TO PICTURES OF CRICKET
(not the best just easiest ones to find, if these
do not work I will look for some other ones later)
*for the slow ones out there :) -like me- (: each word is a link to a different picutre and its the one that is biggest on the right side of the screen*