Dr. Kozak

Episode Appearances

Season One Episodes

• "It Begins and Returns" (first appearance)
• "Lost My Remote"
• "Cold Case"
• "Hero VS Villains"
• "Professor Power's Enterprise"
• "Remote Control"
• "The Layla Factor"
• "Call of Duty"
• "Elementary"
• "A Man Called Medulla"
• "The Lost Hero"
• "Framed"
• "Cool N' Out"
• "Attack of the Clones"
• "Fast and the Furious"
• "Deceive and Conquer"
• "Justice League"
• "The Secret Files"
• "Return of the Bowser Jr."
• "The Army of One"
• "Cats & Dogs"
• "Flight of the Koopalings"
• "Playing Games"
• "The Ring of the Master"
• "Planet 51"

Season Two Episodes

• "Will Gets a Work"
• "The Academy"
• "Parental Bonding"
• "Secrets of the Lost City"
• "The Power Files"
• "The Robot Machines"
• "Breakout"
• "Secret Saturday"
• "The Forces of Evil"
• "Battle to Rescue"

Season Five Episodes

• "Transylvania"

Season Twenty Episodes 

• "The High School Planet" (final appearance)