It can be tough to follow in anyone's footsteps, particularly if those footsteps belong to your former self. Enjoying the high of your own success can be enough to charm any regular person, but imagine living that euphoria for years.

For Robert Horton, that dream became a reality when he starred as Flint McCullough in the series Wagon Train. Horton was on the series for five seasons. The actor even stayed on after the death of his beloved co-star, Ward Bond, in 1960.

Horton later left the show at the end of the fifth season, but Wagon Train wasn't his final foray into television. The Horton-shaped hole on Wagon Train was filled by actor Robert Fuller, who took on the role of the scout. According to an interview with the Associated Press, Horton departed the series to pursue a musical career.

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But in 1965, Horton returned to television and the Wild West to star in the series A Man Called Shenandoah.

When pressed about starring in another Western, Horton was honest.

"I'm not the least bit upset about getting back to a Western," said Horton. "The problem was quite simply trying to follow a show as successful as Wagon Train with one equally good."

Still, Horton had faith in his new show. "I believe in the basic idea," said the actor. "I play a man who has lost his identity and has problems as a result of his determination to find out who he is. I think it's a good vehicle and would be even if it were not set in the post-Civil War West."

Ultimately, A Man Called Shenandoah lasted one season, though Horton enjoyed a fruitful career after the series ended.