I finally got around to reading 'Karina's Last Days' last month, and the characters really stuck with me. Karina herself is obviously central, and the way her perspective shifts as her illness progresses is handled with such a raw, unflinching honesty. It's not a sentimental portrayal at all, which I appreciated.
The other key character for me was her brother, Leo. Their relationship is the core of the book, honestly. He's trying to hold everything together—dealing with their parents' denial, managing his own grief, and trying to be there for Karina on her own terms. The dynamic with their mother, Eleanor, is also crucial. She represents this wall of forced optimism that Karina has to push against, and those scenes are incredibly tense. A lesser book would have made her a villain, but she's written with a lot of complexity, just someone drowning in her own way.
I found myself thinking about the hospice nurse, Miguel, for days after finishing. He's only in a few scenes, but he brings a kind of grounded, practical calm that the family desperately lacks. His presence highlights how isolated they all are in their own private struggles.