He is perhaps best known for his regular roles on the television programs Superboy as Clark Kent in the show"s first season and as Ryan McBride on the soap opera Melrose Place. John Newton is best known for playing the lead role of Clark Kent/Superboy in the television series Superboy during the show"s first season only from 1988-1989. Newton was among the drastic cast changes that took place between seasons, and was replaced by Gerard Christopher in the role for the remainder of the show"s run.
Besides Superboy, he played regular roles on the television programs Melrose Place and The Untouchables.
He had a recurring role on Models, Incorporated. before being transferred onto Melrose Place after its cancellation. Both shows were part of the Beverly Hills, 90210 franchise.
On the Digital Video Disc release of Superboy: The Complete First Season in 2006, Newton appears as himself on the documentary featurette "Superboy: Getting Office the Ground" and provided audio commentary with executive producer Ilya Salkind on two episodes. He starred in and the 2009 independent film Yesterday Was a Lie.
Born in Chapel Hill, North Carolina, Newton spent 3½ years training and performing theatrically in New York City, including a brief career as a model.
During the filming of Alive, Newton was able to meet the survivor (Antonio Vicintin) whom he portrayed in the movie.