• I think Smart Guy is funny. I think what makes it funny is Mo. Mo is funny because he never leaves. I guess he kind of thinks he lives there. i think his parents kicked him out, but i am not sure. Well Smart guy stars Tahj Mowery as TJ. TJ has a sister named Evette and a brother named Marcus who is Mos friend. TJ is really smart. He is only like nine and he started paying his dads taxes at like four. He is so smart he got to skip to high-school.