Zephyr is a young boy with a strong resemblance to his father, but has green eyes like his mother, and wears a yellow tunic.
Zephyr first appears in Quasimodo's room, to which he and Quasimodo play Touril, and then his parents come in and tell him to slow it down, to which he rightfully obeys his parents. They then look at the bell La Fidèle. Zephyr soon observes that the circus is coming to town. While watching the circus, he decides that he wants to join. He follows Sarouch into the cathedral and watches him steal the bell. Sarouch soon takes him captive and Madeline saves him.
- Zephyr's name means "West wind", a possible reference to his strong friendship with Quasimodo, as well as the boy's energetic behavior. It is also the name of a Greek wind god, likely a reference to how his father is named for a sun god.
- Haley Joel Osment was 9 years old when he recorded the voice, but he was 14 when The Hunchback of Notre Dame II was released five years later.
- In the trailer for The Hunchback of Notre Dame II, Haley Joel Osment is credited as his second ever appearance in a Disney film. This was false, as he had already been acting for a few years before 2002. His first major movie role was in Forrest Gump (1994), and between the creation and release of The Hunchback of Notre Dame II, he achieved official stardom for his roles in Beauty and the Beast: The Enchanted Christmas (1997), The Sixth Sense (1999), Pay It Forward (2000) and A.I. Artificial: Intelligence (2001). However, the description may mean that this is his first-ever involvement in an animated film, since he recorded his lines when he was 9 years old.
- Zephyr is one of two boys to be the sons of Disney Heroines, with the other being Danny Darling from Return to Never Land. All other Disney Heroines have daughters. If animal heroines are included, he is one of nine (named) boys, considering Duchess has two sons, and Lady also has one. And of course, Perdita has several, but only three boys with confirmed names.
- Zephyr's name is also the alias of the Lincoln MKZ.