Carlton Banks is Will 's preppy, conversative cousin. He is the eldest son of Philip and Vivian Banks .Carlton was born on September 21, 1974 to Vivian and Philip Banks . He has an older sister, Hilary Banks , a younger sister, Ashley Banks , and a younger brother, Nicky Banks .Carlton attended Bel-Air Academy and ULA until he transferred to Princeton in the series finale.Carlton is highly intelligent, but sometimes annoying, naive, and arrogant. He's a conversative Republican and is often at odds with his cousin, Will Smith. He dresses in a preppy style, his favorite singer is Tom Jones, and his idol is Macaulay Culkin.He is subject to compulsive gambling as seen in the episodes, "You Bet Your Life" and "Viva Lost Wages."