Possible Clues:

• 'Simpsons' storekeeper
• 'The Simpsons' storekeeper
• Kwik-E-Mart proprietor
• "The Simpsons" storekeeper
• "The Simpsons" shopkeeper
• 'The Simpsons' clerk
• ''Simpsons'' shopkeeper
• Clerk on 'The Simpsons'
• Kwik-E-Mart owner
• Kwik-E-Mart clerk