This article contains spoilers for The Last of Us episode 5, The Last of Us Part I, and The Last of Us Part II.The Last of Us episode 5 has proven that adapting The Last of Us Part II would work by proving the story of Kathleen. The Last of Us episode 5 brought together the story threads introduced in the preceding episode, bringing the Hunters head-to-head with Joel, Ellie, Henry, and Sam. In doing so, the episode wrapped up the arc for many characters, including Melanie Lynskey's Kathleen.

https://screenrant.com/kathleen-last-of-us-part-2-story-show-adaptation/