Possible Clues:

• Muppet who's over 8 feet tall
• 8-foot-2-inch Muppet
• 8'2' children's character
• 8-foot-2 friend of Elmo
• Friend of Snuffleupagus
• He has a nest at 123½ Sesame Street
• Tall 'Sesame Street' character
• Yellow 'Sesame Street' character
• 'Sesame Street' resident
• Sesame Street resident