Hauser was born Gerald Dwight Hauser in Hollywood, California, the son of Geraldine (née Thienes) and Academy Award-winning director and producer Dwight Hauser (1911–1969). His brother is actor Erich Hauser.
In 1975, Hauser released an album for RCA with title, Your Love Keeps Me Off the Streets. For this LP he used the name Wings Livinryte. Hauser first attracted notice in 1977 in the soap opera The Young and the Restless as Greg Foster. He has appeared in 41 television series, including recurring roles in Beverly Hills 90210, Murder, She Wrote and Roseanne. In 1983 he wrote, and produced the Paramount box-office hit, Uncommon Valor. Hauser has also managed to sustain an eclectic movie career, highlighted by rather eccentric, intense character portrayals in movies such as Vice Squad, Deadly Force, No Safe Haven, and Tough Guys Don't Dance.
From his first marriage to Cass Warner he has son actor Cole Hauser. Hauser is married to actress Cali Hauser and has daughter Bright Hauser.