American operatic baritones

Richard J. Clark (born April 25, 1943) is an American operatic baritone. He studied at the Academy of Vocal Arts and the Juilliard School.

William Sterling Walker (October 29, 1931 – April 10, 2010) was a baritone with the Metropolitan Opera (1962–1980) whose singing career included performances at the White House, at Carnegie Hall and other concert venues across North America and Europe, and some 60 appearances on The Tonight Show Starring Johnny Carson. From 1991-2002, he produced opera as General Director of Fort Worth Opera in Fort Worth, Texas.