Possible Clues:

• "The Blues Brothers" co-star
• John of “Animal House”
• "Animal House" actor
• Whom ''Rolling Stone'' called the ''live'' in ''SNL''
• John of 'Animal House'
• 'SNL' legend John
• "SNL" legend John
• *SNL star whose epitaph says, 'I may be gone, but Rock and Roll lives on'
• 'Wired' subject