Bigweed and Lil Seaweed were pretty dumb. They basically had multiple personalities - bad half the time, but sometimes good and willing to help the snorks. I will admit, I found them funny at first (during Season 3), but by the time Season 4 came along they became really irritating. Stinky Dan - also from Season 4 - was pretty stupid, as well. Of course, he teamed up with Bigweed, so it was to be expected from the beginning.