Zephyr shares his name with Zephyrus (Ζέφυρος), the personification of the west wind in Greek mythology.
He is the only known Marine Admiral that hasn’t eaten a Devil Fruit.
His favorite alcoholic beverage is Jerez.
He is currently the highest-ranked non-canon Marine.
He shares some similarities with Gasparde:
Both crews’ jolly rogers indicate a relationship with the Marines.
Both were high-ranking Marine officers before their departure (though their reasons and chosen paths were different).
Zephyr also shares many similarities with the main antagonist of the movie Strong World, Shiki:
Both are the antagonists of movies overseen by Eiichiro Oda during the whole process.
Both’s histories have been developed by Oda personally.
Both also have remarkable prostheses that double as weapons, with Shiki having two swordsreplacing his feet and Zephyr having a huge mechanical arm.
Both characters have elements of ships on their own bodies, with Shiki having a steering wheel on his head and Zephyr having two mast riggings across his chest.
Both are from Roger’s era.
Both had four episodes related to their respective movies with their own sets of characters.
Zephyr even shares some similarities with Edward Newgate:
Both are from Roger’s era.
They were the same age (though Newgate died two years before Zephyr).
Their last actions were to sacrifice themselves to save their comrades from the Marines.
Both were killed by a former subordinate with whom they once shared a mutual respect.
Their signature weapons served as their grave markers.
Both were dependent on medical support outside of combat.
In the 5th fan poll, Zephyr ranked 71st making him the most popular non-canon character in the series.