Competition Freak: Moreso than Zach. Not only does she have a rivalry with him, but she's also challenged the brothers, and nature itself ("Cheetah Racer" against the cheetah, "Platypus Café" when she thought she could figure out Plato's "sixth sense" on her own…).
Freudian Trio: One with Chris and Martin, and another with Koki and Jimmy.
Butt Monkey: Especially in "Elephant in the Room". He's also punched himself in the face (twice in a row!), dropped a football on himself, gotten tangled up in a hammock, banged his thumb with a hammer twice, need I say more?
Hates Being Touched: Oddly, only with Aviva. Other characters have even made full body contact that he didn't look uncomfortable with, but he shrinks away from Aviva (except in "Masked Bandits" when she was behind him with her hands on his shoulders, and he had his hands on hers).
Neat Freak: "Help! I'm CONTAMINATED! Somebody SAVE me!"- "Let the Rhinos Roll!", after being thrown into the mud pit.
Never My Fault: "They made me lose! I never lose!"- "Bass Class". Also, his Freudian Excuse is that the Kratt Brothers wouldn't let him make robots out of animals when they were kids, and this is why he A- hates kids, B- hates the brothers, and C- is a villain at all.