Since the Muppets got thier turn of having thier style of the Wizard of Oz, I suggest to give the Nicktoons thier turn.
Timmy Turner (The Fairly Odd Parents) plays the Scarecrow.
Jenny (My Life as a Teenage Robot) plays the Tin-Age Robot.
CatDog plays the Cowardly LionWolf.
Spongebob Squarepants plays the Wizard.