I just finished a re-read, so this is fresh. The pilgrims on the journey to the Shrike's Time Tombs are the heart of it. You've got seven, each telling their tale on the way. Father Lenar Hoyt is this tormented Catholic priest, burdened by the story of his friend Paul Duré and the Bikura on the planet called Pacem. His whole thing is faith and a horrible, literal resurrection. Then there's the Consul, the diplomat from the Hegemony who's piloting the ship; he's quiet but has this massive, generations-spanning secret tied to the Ousters and his family. His story comes last and ties a lot of the political threads together.
Colonel Fedmahn Kassad is the soldier, a legendary warrior from the future who fought alongside the Shrike once, or maybe against it—his timeline is weird. He's got this tragic romance with a woman named Moneta. Sol Weintraub, the scholar, is my personal anchor. His daughter Rachel gets hit with the Merlin's Sickness, aging backwards after an archeological accident on Hyperion. His entire tale is about a parent's love facing an unstoppable, cruel fate. It's devastating.
The poet, Martin Silenus, is this crude, ancient figure who's been alive for centuries, writing an epic poem and waiting for his muse. He's connected to the wealthy CEO, Meina Gladstone, who pulls strings back on the Hegemony capital. The detective, Brawne Lamia, investigates the death of a cybrid (an AI-human hybrid) named Johnny, who might be John Keats. Her role is to unravel the TechnoCore's plots. And Het Masteen, the Templar tree-ship captain, is the mysterious one who doesn't get to tell his story before things go sideways. They're all there because the Shrike or the Time Tombs have warped their lives. Each role feels less like a job title and more like a different kind of wound the universe has given them, you know? The book's structure makes you understand them through their pasts, not just their present actions on the pilgrimage.