3. Stacey Dash
3. Stacey DashPlayed A Teen In: The Cosby Show (1985), Clueless (1995), Clueless: The TV show (1996-1999) Age: 46 The seriously ageless Stacey Dash’s first on-screen role was as Denise Huxtable’s friend on The Cosby Show in 1985. Ten years later, the 28-year-old became a household name as BFF to spoiled high school student Cher in the iconic Clueless. The actress played the role in the TV adaptation until the show ended in 1999, when she was 32. [Photo via]