Possible Clues:

• He was questioned by Homer about the theoretical product Skittlebrau
• 'The Simpsons' character whose last name has 18 letters
• Satyajit Ray protagonist
• 'The Problem With ___' (2017 documentary)
• Toon for which Hank Azaria won a 1998 Emmy
• Slushy seller on 'The Simpsons'
• Kwik-E-Mart proprietor on "The Simpsons"
• 'Simpsons' shopkeeper
• Hank Azaria character
• Squishee purveyor on 'The Simpsons'