Dr. Heathcliff "Cliff" Huxtable is known for his comical antics, playful admonishments, and relentless teasing humor. He lives in Brooklyn Heights, New York. Cliff had a brother, James Theodore Huxtable, who died of rheumatic fever at the age of 7. In his high school and college years, he was an athlete who wrestled, played football, and ran track. He later served in the Navy before going to medical school. He is an OB/GYN who runs a practice from the office annexed to his home. In the show, most characters outside of family and friends refer to him as "Dr. Huxtable", and he is well-respected in the community.