Mister Z

Mark Stewart aka Mr. Z is a teenager boy with the ability to transform into a monster and the tertiary antagonist of Monster Kid. He is the older brother of Megan, Max, and Dennis.

Personality
Ever since he was kidnapped and injected with Godzilla's DNA, Mark has blamed his father for everything.

Early Life
Mark Stewart is the first born child of Mary Stewart and Dr. Harold Stewart. At some point, he was kidnapped by a family of criminals and handle over to a mad scientist.

Powers and Abilities

 * Biomorphing
 * Kaiju Morphing