Cha-Cha, or was a dropout. Stewart was more than a decade older than his "Grease" character. In addition to starring in "Grease 2" in 1982, he appeared in numerous TV series through the early '90s.

While some characters’ names have become hazy over the years, it’s impossible to forget Grease’s inimitable fashion (the leather! The pink jackets! The Fifties skirts! Cha Cha’s dress!