Dennis Cleveland Stewart was an American actor and dancer. He is best remembered for his portrayal of ‘Leo “Craterface” Balmudo’ in the American romantic comedy Grease. ‘Craterface’ was the opponent of the character played by renowned actor John Travolta. Stewart reprised the role in the sequel, Grease 2. Being a good dancer helped Stewart get roles that required dance skills. He performed in a cameo role of a dancer in the musical comedy Sgt. Pepper’s Lonely Hearts Club Band. He appeared as a dance instructor in the TV series Angie. Dennis Cleveland Stewart made small appearances in TV movies such as Elvis and Police Story: Cop Killer. He was also seen in single-episode roles in TV series such as The Greatest American Hero, Misfits of Science, and Alfred Hitchcock Presents. Stewart did not have a highly successful career. In his last days, he contracted AIDS. The TV series Parker Lewis Can’t Lose marked his final screen appearance. He contracted pneumonia as a result of AIDS and died prematurely at the age of 46. His ashes were scattered in the sea.