In 1958-1959, he starred as Bart McClelland, the fictitious supervisor of construction of the Union Pacific Railroad in the syndicated half-hour Western series Union Pacific, based loosely on a film of the same name. In 1960, Morrow played Tob, the older brother of Boaz in the biblical drama, The Story of Ruth. During the early 1960s, Morrow appeared in such films as Harbor Lights (1963), the Italian comedy Il giovane normale (1969), Blood Legacy (1971), and in a bow to his earlier career, a cameo in the 1971 Monster film Octaman for veteran 1950's Monster movie writer/director Harry Essex.