William Edward Daily was an American actor and comedian known for his sitcom work as Major Roger Healey on I Dream of Jeannie (1965–1970) and Howard Borden on The Bob Newhart Show (1972–1978). Daily was born in Des Moines, Iowa, and raised in Chicago, Illinois.

He began his career as a musician, playing upright bass with jazz bands in numerous clubs across the Midwest. In the early 1960s, he began to pursue an acting career, appearing in guest roles on several television series. In 1965, Daily was cast as Major Roger Healey on I Dream of Jeannie.