Zach is a tall man with a very thin build and very pale white skin. He is barely taller than Chris. He has short shiny black hair and emerald green eyes, sporting a small goatee. He also has a wrinkle on his face. He wears a black turtleneck sweater, gray pants, and pointy black heeled shoes. Zach is extremely arrogant, stubborn, and self-centered; often referring to himself as "The world's greatest mind" and programming his computers to call him "My Greatness", in spite of the fact that his inventions often fail, and is even shown to have his own cologne. Zach is portrayed more comically than the other villains along with more slapstick moments; his screams are girlish, he constantly trips and falls, and he has to deal with the literal mindedness of his Zachbots. He is childish, as he often whines, gets scared, brags, and bullies, all in a very childish manner (plus, he likes sweets, such as lollipops and cookies). However, his arrogance isn't unfounded because he actually is a pretty good inventor, and he is also very wealthy. Due to his dislike of the Wild Kratts and their interferences, he usually refers to them as "Wild Ratts", with at least one of the Wild Kratts usually correcting them, especially the Kratt Brothers. This has backfired on him at least once when giving orders to his computer, which corrected him before following its commands. He is shown to be very dramatic at times, like when he freaks out over a wrinkle. He is so unbelievably lazy because he refuses to do everything himself. He can, however, be smart on how to survive a bumble bee. {submissive, definitely whines in bed, gets flustered easily but is low-key freaky, easy to short-circuit, often pillow princess/compliant}