THEN: Bill Cosby as 'Cliff Huxtable'
Dr. Heathcliff "Cliff" Huxtable is an OB/GYN working out of an office in his Brooklyn home. He is married to Clair, with whom he has five children. Cliff is known for his goofy attitude, vibrant sweaters, competitive nature and silly faces. —XFINITY Entertainment Staff (Photo: NBC)
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