Newman is best known for his role as Joshua Lewis on the American soap opera Guiding Light, a role he played from 1981 to 1984, and again from 1986 to 1991, and 1993 to the series finale in September 2009.
During his collective run on the show, Newman was also paired with other actresses, including Michelle Forbes (Sonni), Beth Ehlers (Harley), Marcy Walker (Tangie), Cynthia Watros (Annie), Crystal Chappell (Olivia), and Nicole Forester (Cassie).