Pen Pal first appears in the episode, Her Wacky Highness, when Gogo introduces him to Babs. He can later be seen in the throne room when Babs is decreed Queen of Wackyland.
Pen Pal makes a brief appearance in the Night Ghoulery episode segment, Night of the Living Dull, where he, Gogo, Sphinx, The Elephant, Private Eye, and a Plunger hide out in a haunted mansion to escape from dull people.
Appearances In Video Games
Pen Pal appears as an enemy in the fifth stage of Tiny Toon Adventures for the NES (at Wackyland, appropriately enough).
Pen Pal in the Night Ghoulery sketch, Night of the Living Dull