Zach from Wild Kratts
In Wild Kratts, Zachary “Zach” Varmitech (voiced by Zachary Bennett) is an arrogant robotics engineer who uses his genius to invent robots called Zachbots to do his bidding. He often clashes with the Kratt Brothers during his plots to turn animals into robots.
Aviva Corcovado from Wild Kratts
In PBS’s educational nature show Wild Kratts, Aviva Corcovado is a biomechanical engineer and third in command of the Wild Kratts crew. Aviva is responsible for inventing all of the gadgets, including the Tortuga and Creature Power Suits. Her signature color is purple, and she likes to dress practically from her windbreaker down to her sneakers.