According to Wikipedia, Everett was born Raymon Lee Cramton in South Bend, Indiana, to Virdeen Ruth (née Hopper) and Harry Clyde “Ted” Cramton. He was raised in Dearborn, Michigan, where he became interested in the theatre as a Fordson High School student.
After attending Wayne State University in Detroit, he headed to Hollywood and obtained a contract with Warner Brothers studio. Agent Henry Willson signed him and changed his name to Chad Everett. Everett claims he changed his name because he tired of explaining his real name, "Raymon-no-D, Cramton-no-P."