The Lorax (2012)/Dexter's Laboratory

Cast

 * Pipsqueak as Dexter
 * Anais (from The Amazing World of Gumball) as Dee Dee
 * Ted as Dexter's Dad
 * Audrey as Dexter's Mom
 * Ted's Mother as Lee Lee
 * Grandma Norman as Mee Mee
 * Young Once-ler as Tall Dexter
 * Mr. O'Hare as Mandark
 * and more