Gunsmoke: Characters Gunsmoke Adventure, Action, Western 9/10/55 – 3/31/75 United States GeneralEpisodesCastCharactersGallery Characters See all characters → Matt Dillon Dr. Galen "Doc" Adams Kitty Russell Festus Haggen Newly O'Brien Deputy Chester Goode Quint Asper Thad Greenwood Dr. Galen "Doc" Adams Newly O'Brien Dr. Galen "Doc" Adams Newly O'Brien Dr. Galen "Doc" Adams Newly O'Brien Dr. Galen "Doc" Adams Newly O'Brien Dr. Galen "Doc" Adams Newly O'Brien Dr. Galen "Doc" Adams Newly O'Brien Dr. Galen "Doc" Adams Newly O'Brien Dr. Galen "Doc" Adams Newly O'Brien Dr. Galen "Doc" Adams Newly O'Brien Dr. Galen "Doc" Adams Newly O'Brien Dr. Galen "Doc" Adams Newly O'Brien Dr. Galen "Doc" Adams Newly O'Brien Dr. Galen "Doc" Adams Newly O'Brien Dr. Galen "Doc" Adams Newly O'Brien Dr. Galen "Doc" Adams Newly O'Brien Dr. Galen "Doc" Adams Newly O'Brien Dr. Galen "Doc" Adams Newly O'Brien