Possible Clues:

• Paul of 'Mad About You'
• "Mad About You" co-star
• Paul of "Mad About You"
• 'Mad About You' co-star
• Hunt's 'Mad About You' co-star
• ''Mad About You'' star
• Hunt's TV co-star
• ''Couplehood'' author
• "Mad About You" costar
• Hunt's sitcom co-star