Zak is the equivalent of Kaz in Super Sickbay . He is a little chubby, very clumsy, has black hair in the same style as Kaz's, and is also a little stupid. His best friends are Veriol and Rylie . In Science Guinea Pigs: Mighty Agency , the three of them join a Mighty Agency involving Bring and Catch from Science Guinea Pigs to track down the villains who destroyed Super Sickbay and keep the world safe. Later, the Mighty Agency joined with the cast of N.A.T. House to create Mighty NAT Agency , an in-show parody of the Elite ANT Force itself.