Related Information for Johnny Crawford John Ernest Crawford (born 1946) is a talented American actor, singer, and musician.An original Mousketeer in 1955, Crawford has acted on stage, in films, and on television.He received an Emmy Award nomination at the age of 13 for his role as "Mark McCain," the son of Lucas McCain, played by Chuck Connors, on the Four Star Television series The Rifleman, which originally aired from 1958-1963 on ABC. During this time, he had wide popularity with American teenagers and a recording career.. read more