James Arness played Marshal Matt Dillon in 635 episodes of Gunsmoke, the only cast member to appear in every single one. While fellow regulars Amanda Blake and Milburn Stone can't top that, they were both in more than 500 episodes — a significant achievement by any standard!

Whether it was regular cast members, recurring characters or famous guest stars, countless actors appeared in Dodge City dozens or even hundreds of times. Take a look at these actor pairings and try to guess who was in more episodes of Gunsmoke!