Shot dead with a pistol
In the pilot, which was originally intended for Gunsmoke (1955), Chuck Connors’ character was named John McCain. According to IMDB, he didn’t have any children and was a dead shot with a pistol.

Sammy Davis Jr. impressed the crew
Know as “Mr Show Business” and “the greatest entertainer ever to grace a stage in these United States” – Sammy Davis Jr. is a dearly missed superstar who forever carved himself into American history.
But did you know he made an appearance in The Rifleman? In the episode Two Ounces of Tin, Sammy Davis Jr. portrayed the outlaw Tip Corey. He showcased impressive skills with a gun, demonstrating quick draws and impressive twirling maneuvers. What’s remarkable is that all of these stunts were performed by Davis himself, without a stand-in!