This is Casper, not Gerald. You can tell by their mass. Casper is bigger. And more wise. But not super wise, as we can see. Rachel is the slightly more academic vegetable in the group, and not because she wears glasses! It's because of her insatiable need to understand reality. The glasses are from reading too many science magazines in dimly lit living rooms late at night. Look at how many badges she's got! JUST LOOK AT THEM! So scientific. Go, science girl!