Possible Clues:

• "Misery" co-star
• "Misery" actor
• 'Misery' co-star
• "Misery" star
• He was Sonny to Marlon Brando's Vito
• 'Las Vegas' actor
• Actor originally slated to play Michael Corleone in 'The Godfather'
• He played a Corleone
• Character actor who's able?