Cliff Huxtable, played by (and loosely based on the real life of) Bill Cosby, stole our hearts in the '80s. As dad to five children -- Sondra, Denise, Theo, Vanessa and Rudy -- with wife Clair, Cliff was often humorous, but always endearing. Cliff had a penchant for making silly bets and played a monthly game of pinochle with his dad and some friends.