Sprocket, a dog of many talents, has imitated various people, animals, and things over the course of Fraggle Rock.

Picture	Subject	Episode	Notes
	Ned Shimmelfinny	Episode 102: Wembley and the Gorgs and others	Sprocket makes a "Blahrrgh" sound, waving his paws and clutching at his neck in a choking manner. This is his version of Ned.
	Monster	Episode 107: I Want to Be You	Sprocket tries on a monster mask for the costume ball.
	Ghost/Pile of Laundry	Episode 107: I Want to Be You	Doc's suggestion for Sprocket's costume, before realizing that if Sprocket goes as laundry, he'll have to go as bleach.
	Doc	Episode 107: I Want to Be You	Proving that pets do resemble their owners, Sprocket dresses as Doc, and even fixes a toaster device, while Doc goes as Sprocket.
	Horse	Episode 208: All Work and All Play	Sprocket decides he wants to be a horse. Doc outfits him with a saddle and cellophane-attached horse shoes.
	The Swedish Chef	Episode 319: The Cavern of Lost Dreams	While inventing a cereal, Sprocket does a brief imitation of the Swedish Chef, complete with theme song hum and "Bork bork!"
	Doberman Pinscher	Episode 410: Red's Blue Dragon	Sprocket does a vocal impression of a doberman, snarling at Doc, considering costume party ideas.
	Elephant	Episode 410: Red's Blue Dragon	Sprocket tries being an elephant.
	French Poodle	Episode 410: Red's Blue Dragon	Sprocket ultimately goes to the costume ball as a yappy French poodle. (Fluffinella goes with the same costume.)
	Cat	Episode 413: Boober Gorg	Sprocket pretending to be a cat, to comfort Ned in Fluffinella's absence.

International versions

Picture	Subject	Episode	Notes
	Unicorn	Episode 113: We Love You, Wembley (French version)	Doc straps a horn on "Croquette", to pose for Madame Pontaven's crest.