Kenneth Marine Kercheval (July 15, 1935 – April 21, 2019) was an American actor, best known for his role as Cliff Barnes on the television series Dallas and its 2012 revival.

His other theatre credits included The Apple Tree, Cabaret (replacing Bert Convy as Cliff), and Here's Where I Belong.

In 1966, he appeared as the title character in the original Broadway production of Fiddler on the Roof, co-starring with Herschel Bernardi, Maria Karnilova, Julia Migenes, Leonard Frey, and Pia Zadora.

Kercheval gained his first television role playing the part of Dr. Nick Hunter #2 (replacing Burr DeBenning) on Search for Tomorrow in 1966.

In 1991, he appeared in the reunion movie, I Still Dream of Jeannie, playing Mr. Simpson, a guidance counselor at Anthony Nelson Jr.'s high school and was the temporary master for Anthony Jr.'s mother, Jeannie (Barbara Eden); this was because Larry Hagman, who played Tony Nelson, was not available to reprise his role, as he had not yet finished his run on Dallas – the irony being that I Dream of Jeannie was Hagman's first major series, and the actors' respective Dallas characters despised each other.

He reprised his role in Sunderland in 2010 and at The Lowry in Salford Quay with Coronation Street actor Wendi Peters and Brookside regular Claire Sweeney from November 2012 until January 2013.

In later years, he spent the majority of his time near his family in Clinton, IN, where he enjoyed attending local fairs and festivals.