RICO RODRIGUEZ II, 12
Doesn't ruin: Modern Family (2009-present)
Why they don't suck: Really, we're not mad at any of the young actors on Modern Family, but double-R slays as Manny Delgado, the sophisticated would-be Colombian Don Juan trapped in a hefty boy's body. A less talented comedic child actor could easily become just a fat joke, but with a mature sense of humor and timing both on and off camera, Rodriguez carries his weight, and not the other way around.
Child version of: Kevin James