Richard John Grieco, Jr. is an American actor and former fashion model. He was born on March 23, 1965 in Watertown, New York.
Richard Grieco worked as a model for Armani, Calvin Klein and Chanel. He first appeared on TV as Rick Gardner in the One Life to Live TV series. He became especially known by portraying Dennis Booker in the 21 Jump Street TV series (1988–1989) and its spin-off Booker (1989–1990). In 1991, he had his first movie appearance as Michael Corben in If Looks Could Kill.
- in Levi's jeans as Dennis Booker in 21 Jump Street (1988–1989)
- in Levi's jeans as Dennis Booker in Booker (1989–1990)
- in Levi's jeans as Michael Corben in If Looks Could Kill (1991)