Possible Clues:

• Ralph Kramden's pal
• Sitcom sewer worker
• Sewer worker in a '50s sitcom
• Sitcom sidekick whose wife sometimes calls him by his last name
• Classic sitcom sidekick
• Art Carney character
• "Ralphie-boy" utterer
• Old television's 'Raccoon of the Year'
• Ralph Kramden's friend
• '50s sitcom sidekick