Wells starred as Linda Barrett in the TV series Fast Times in 1986. In 1985 she starred as Jennifer Parker in the movie Back to the Future. Wells also starred in the movies Still Waters Burn, Alien Armageddon, and Starship: Rising. She has also appeared in episodes of the TV series Rise and Shine, Strike Force, Lovers and Other Strangers, Fame, Trapper John, M.D., Simon & Simon, Brothers, and The Mentalist. In 1987 Wells won a Young Artist Award for CBS Schoolbreak Special.