Grieco began a singing career in 1994 with the Dunmore Band. He played himself in the 1998 film A Night at the Roxbury. He also appeared in the TV series Marker in 1995. Later in 1991, he played the young Jewish bootlegger and mobster Benjamin 'Bugsy' Siegel in the movie Mobsters. Grieco's feature film debut was as Michael Corben in If Looks Could Kill (1991) and has appeared in numerous films since then. In 1988, Grieco began appearing as Detective Dennis Booker on the shows 21 Jump Street and its spinoff Booker. He played Rick Gardner on One Life to Live from 1985 to 1987. Grieco worked as a model for Armani, Calvin Klein and Chanel. Grieco played football for Central Connecticut State University. Grieco attended Hudson Valley Community College in Troy, New York graduating in 1984. Grieco was All-State in all three sports. After moving to Franklin, Massachusetts, in his teenage years, Grieco played football, hockey and lacrosse in high school. Richard Grieco was born in Watertown, New York, the son of Richard and Carolyn (née O'Reilly) Grieco.

Richard grieco night at the roxbury