Sesame Street Stays Up Late/I Am Weasel

Cast

 * Count von Count as I.M. Weasel
 * Grover as I.R. Baboon
 * Baby Bear as The Pleasant Man
 * Cookie Monster as Sylvester the Cat
 * Prairie Dawn as Lynette McDade
 * Finchen as Earl of Flem
 * Oscar the Grouch as The Red Guy
 * Alfa as Cow
 * Big Bird as Chicken
 * Mrs. Grouch as Mum
 * Max Mekker as Dad
 * Bert as Flem
 * Ernie as Earl
 * Aunt Ethel as Teacher
 * Tiffy as Nurse
 * Rosita as Lulabelle
 * Kippi Ben Kippod as Jolly Roger
 * Grouches as Dinosaurs