Possible Clues:

• First name of six U.S. presidents
• 'Home, --'
• Name of monarchs, primarily John, Anne, Mary, Elizabeth and Stephen
• Writer who saw himself as a son and brother
• Name shared by two apostles
• With 8 Down, character created by 17 Across
• McAvoy who played half of 24-Across
• Kevin of 'King of Queens'
• Caan or Cagney
• Name of six presidents