Sesame Street Stays Up Late/Leapfrog

Cast

 * Big Bird as Leap
 * Elmo as Tad
 * Zoe as Lily
 * Count von Count as Dad
 * Tiffy as Mom
 * Snuffy as Grandpa
 * Cookie Monster as Professor
 * Grover as Mr. Dog
 * Rosita as Little Cat
 * Cousin Pepe as Mr. Duck
 * Telly Monster as Mr. Pig
 * Elmo-noske as Turtle