Clint Walker, who died recently, is best known for portraying the title character of “Cheyenne” for seven TV seasons between 1955 and 1963. It was a very successful show.
But Walker went on strike three years into the run, upset over residuals and the fact the studio got 50% of all of his personal appearance fees. To cover, producers introduced the character of Bronco Layne—and when Walker returned, Bronco (Ty Hardin) got his own series, which rotated with “Cheyenne” (and “Sugarfoot”) for the next few years.
https://truewestmagazine.com/clint-eastwood-ambidextrous/