Cookie Monster's Alternate Identities

From Muppet Wiki

Characters and alter-egos assumed by Cookie Monster in Muppet productions.

Picture	Role	Production	Notes
	Ernie	Sesame Street episode 0158	Bert says that he's seen Ernie eating cookies. The culprit turns out to be Cookie Monster, disguised with Ernie's hair and shirt.
	The Great Cookie Thief	Episode 0276	From 1971
	Doctor Monster	Episode 0691	Cookie Monster pretends to be a doctor so that he can trick Ernie into giving him an apple.
	Little Red Riding Hood	Sesame Street News Flash	Little Red Cookie Hood brings cookies for his sick grandmother, but Kermit the Frog tells him that sick people should have healthy foods.
	Casey McPhee, the Engineer		From the ballad of the same name
	Alistair Cookie	"Monsterpiece Theater"
	Little Boy Blue	Big Bird's Mother Goose
	Baby Cookie	Sesame Beginnings and The First Time Me Eat Cookie
	A cookie	Sesame Street Halloween card	Cookie Monster dressed as a cookie to go trick-or-treating.
	Cookie Monster as the Cheshire Cookie Cat	Abby in Wonderland	Cookie Monster plays a cat from Cheshire in Abby Cadabby's dream.