Robert John Downey, Jr. (born April 4, 1965) is an American actor. Downey made his screen debut at the age of five when he appeared in one of his father's films, and has worked consistently in film and television ever since. During the 1980s he had roles in a series of coming of age films associated with the Brat Pack. Less Than Zero (1987) is particularly notable, not only because it was the first time Downey's acting would be acknowledged by critics, but also because the role pushed Downey's already existing drug habit one step further. After Zero, Downey started landing roles in bigger films such as Air America (1990) and Soapdish (1991). These higher-profile roles eventually led to his being cast as Charlie Chaplin in the 1992 film Chaplin, for which he earned an Academy Award nomination for Best Actor.