As a disclaimer, this post covers detailed content up to the season 8 finale of Game of Thrones. Please do not read further if you want to avoid spoilers. As another disclaimer, this post discusses material exclusively from the Game of Thrones HBO TV series, and it does not draw from any content from George R. R. Martin’s books. I also want to mention that this post explores substance use disorders and themes of addiction, and I would like to include a trigger warning because of these sensitive topics. Additionally, even if you do not watch or read Game of Thrones, this case study is a broad overview about the character of Jaime Lannister, followed by a generalized discussion on mental health practice as a whole.