Zephyr Haddock is a minor character of How to Train Your Dragon: The Hidden World and a supporting character of How to Train Your Dragon: Homecoming. She is the daughter of Hiccup and Astrid, the older sister of Nuffink, and the granddaughter of Stoick and Valka.
Zephyr inherited Hiccup's auburn hair color and freckles and Astrid's blue eyes. Her hairstyle and clothing also resembles Astrid's from younger years. Her hair is pulled into two banded pigtails under a studded kransen.
In Homecoming she wears a sleeveless red tunic with green trim at the neck and arm holes, and blue pauldrons with Nadder heads embroidered into them. Her kransen is wide and red, matching her tunic. Around her waist is a wide light red sash holding a small green pouch on her similar to Astrid's. She wears a reddish brown leather skirt with blunt metal studs. Zephyr also wears olive green cloth bracers with fur cuffs on her forearms, sets of leather bands around her biceps.
In the third film, her tunic is a dark bluish grey, and green beaded shoulder pads. She wears a small red bag over her shoulder that has a print of a Night Fury's head on it.
In the third film, she's first seen pretending to adjust the sails and then curiously looking into the water, showing imagination and curiosity. She awkwardly avoids eye contact with Toothless showing her understanding that he's an intelligent animal. Compared to her brother, she prefers to observe rather than interact.
In Homecoming, she appeared to be an instigator and creative with the many traps she designs. She's also cynical and sarcastic like Hiccup was in his younger years. She's also seen to be stubborn in refusing to change her mind about dragons despite her parents' attempt to show her the truth. However, she finally has an appreciation in loving dragons.
The Hidden World
Ten years into the future, she, Nuffink, Hiccup, and Astrid sail across the sea and reunite with their dragons at the edge of the Hidden World. After introducing his children to his best friend, Hiccup takes their son flying on Toothless while Astrid and their daughter fly on Stormfly, accompanied by the Light Fury and their offspring.
Zephyr has found Stoick's journals about dragons (written before humans and dragons became friends), believing that dragons are dangerous monsters, and now Hiccup must find a way to convince her by putting up a play.
The word "Zephyr" is derived from the greek word Ζεφυρος (Zephyrus) which is the name of the greek god of west wind, and it literally means "West Wind". The name is actually masculine, but in some cases it can also be feminine.
Her age was initially announced to be "8" by Dean DeBlois at the Annecy Film Festival in June, 2019. However, the final movie script confirms it to be "5". As the only other known installment in which the children appear was Homecoming and both children also behave older and are taller in the special than they are in the third film's epilogue the older ages must be from Homecoming.