User blog comment:Adventuretimegurl123/OH MY!! HUGE ADVENTURE TIME NEWS!! :D/@comment-70.41.81.93-20120817053227/@comment-5242921-20120817133651

The thing is, ATgurl, it IS true Finn is the only one who ages but not because of voice actors, because the other characters (apart from Jake) CANNOT biologically age. PB can't age unless she adds to her biomass. It's not hard to figure out... :P