Which One Piece Marines Became Admirals In Canon?

I still get excited every time the Admirals show up in 'One Piece', so here’s a tidy list of who’s been an Admiral in canon and a one-liner on each from a more casual fan perspective:

- Borsalino (Kizaru): Longtime Admiral, light Logia user, deceptively laid-back but terrifying in combat.
- Kuzan (Aokiji): Was an Admiral pre-time-skip; resigned after losing the duel for Fleet Admiral to Sakazuki.
- Sakazuki (Akainu): Served as an Admiral and then became Fleet Admiral after the pivotal duel; his hardline stance reshaped Marine policy.
- Issho (Fujitora): Became an Admiral post-time-skip; blind, uses gravity powers, morally interesting and not just a stereotype.
- Ryokugyu (Green Bull): Another post-time-skip Admiral with a mysterious, environmental-flavored presence.

If you want the exact episodes or manga chapters where they debut or have major moments, I can list those next—I'm always toggling between rereads and rewatch marathons when these characters pop up.

I love geeking out about the military lineup in 'One Piece'—the Admirals are some of my favorite power cards. If you're asking who actually held (or holds) the Admiral rank in canon, here's the short roster with a bit of flavor from my point of view.

Borsalino (Kizaru) — Admiral. He’s been an Admiral for a long stretch in the story, famously lazy-sounding but insanely dangerous thanks to his light Logia powers. I still grin every time his casual attitude contrasts with how wrecking he is in a fight.

Kuzan (Aokiji) — Admiral (formerly). He was one of the three Admirals pre-time-skip. After his duel with Sakazuki (Akainu) over the fleet admiral seat, he resigned and left the Marines, so he’s no longer an Admiral in canon.

Sakazuki (Akainu) — Admiral (and later Fleet Admiral). He was an Admiral during Marineford and then won the duel against Aokiji to become Fleet Admiral. His promotion and brutal absolutism changed the Marine hierarchy and tone massively, which still affects the story later.

Issho (Fujitora) — Admiral. Introduced post-time-skip during the Dressrosa arc, Fujitora is blind and uses gravity-based powers. I loved how his moral complexity shook up the usual Marine image—he’s an Admiral with nuance.

Ryokugyu (Green Bull) — Admiral. He’s the other Admiral introduced or emphasized post-timeskip; his environmental/unique vibe (and the mystery around him when he first appears) made him stand out. Between those five names, you’ve covered the major canonical characters who have held Admiral rank.

Quick note: Sengoku was Fleet Admiral before the big time-skip and Garp is famously a Vice Admiral, so they’re important Marines but not Admirals in the same sense. If you want, I can point you to the key chapters/episodes where each Admiral truly makes their mark—I always end up rewatching Fujitora’s first big scene when I want to feel dramatic energy again.