Chester Goode was written out of Gunsmoke , not killed off on-screen. The character simply disappears from the series after Dennis Weaver left the role, and the show never gave him a proper farewell.

What happened

Dennis Weaver left because he wanted to move beyond the “second banana” sidekick role and avoid being typecast after spending years as Chester. Reports also note that Chester’s exit was abrupt: he was last seen in a Season 9 episode, and then the series moved on without directly addressing his absence.

How the show handled it

  • Chester was part of the series for about eight and a half seasons.
  • His last episode gave him a featured story, but the next episodes simply proceed without him.
  • Later in the series, Matt Dillon eventually mentions former deputies like Chester in passing, but there was no immediate on-screen goodbye.

Why fans notice it

The exit felt sudden because Chester was a major fan favorite and a core part of Dodge City’s early dynamic. That lack of closure is a big reason people still ask what happened to him.

If you want, I can also give you the exact last Chester episode and what happened in it.