Possible Clues:

• 'Lassie' lad
• "Lassie" boy
• 10-year-old toon Turner
• Lassie's companion
• Boy in TV's "Lassie"
• Lad in TV's "Lassie"
• Boy's name
• Lassie's master
• Handicapped boy on 'South Park'
• Lassie's TV owner