Here is a list of all the characters that appear in Onyx Storm. Please note that some of them are new characters we haven’t seen before, while others are returning, including the protagonists, of course.

Spoiler Warning: The following contains spoilers for Onyx Storm. Please make sure you’ve read the book before proceeding.

Returning Characters from Fourth Wing and Iron Flame

Violet Sorrengail: Our female protagonist. In Fourth Wing, Violet became a powerful figure by bonding with two dragons, Tairn and Andarna, and developing a lightning-based signet. In Iron Flame, her second signet was hinted at through shared dreams with Xaden, and in Onyx Storm, it’s revealed to be dream-walking. Violet deepens her relationship with Xaden despite his struggles, discovers she has been touched by Goddess Dunne, and becomes Xaden’s legal consort.

Xaden Riorson: Xaden evolves into a truly morally gray character. As the Duke of Tyrrendor, he sharpens his shadow-wielding and intinnsic signets. His bond with Sgaeyl remains strong, but he loses control several times. Xaden transitions from initiate to venin asim, marked by permanent red veins around his eyes after a brutal channeling incident to save his dragon.

Asher Sorrengail: Finally revealed as Violet’s father, Asher was a Lieutenant Colonel and scribe. He passed away from heart failure after traveling to the Isles with Violet. There, he allowed Goddess Dunne to touch Violet but didn’t complete her dedication, leaving his reasons unclear.

Mira Sorrengail: Violet’s older sister shows significant growth in Onyx Storm. Despite occasional jealousy over their parents’ perceived favoritism toward Violet, Mira embarks on a journey to uncover family secrets by speaking to their grandmother, Niara.

Brennan Sorrengail: Brennan steps into the spotlight by openly reclaiming his Sorrengail name. A skilled strategist, he loves and supports Mira and Violet unconditionally and always finds ways to mend their wounds, both physical and emotional.

Theophanie: The main antagonist in Onyx Storm, Theophanie is a maven and a dark wielder. She’s a powerful storm wielder who relentlessly pursues Violet, believing she is the key to turning venin. Theophanie is cunning, intelligent, and rides an enormous wyvern.

Aaric Graycastle (Prince Cam Tauri): The son of King Tauri, Aaric is loyal to the innocent and level-headed in crises. He is bonded to a blue dragon, Molvic, and possesses a powerful precognitive signet, which Violet realizes despite his efforts to keep it secret.

Rhiannon Matthias: A second-year cadet in the Riders Quadrant and Violet’s best friend. Now a Squad Leader, Rhiannon continues to develop her summoning signet while remaining a patient and fiercely loyal ally to Violet.

Sawyer Henrick: A second-year cadet and metallurgist. Sawyer focuses on developing a prosthetic to help him ride his dragon again.

Ridoc Gamlyn: A close friend of Violet, Rhiannon, and Sawyer. His loyalty is unwavering, but he becomes upset when he learns Violet kept Xaden’s venin transformation a secret, demanding transparency among their group.

General Melgren: The commanding general of Navarre remains cold, calculating, and devoid of kindness.

Dain Aetos: Dain undergoes a major character evolution in Onyx Storm. He shows steadfast loyalty to Violet, even stealing from his father to help her, despite risking his relationship with Colonel Aetos. Dain’s caring nature extends to Sloane Mairi.

Halden Tauri: King Tauri’s firstborn son and Aaric’s older brother, Halden is one of Violet’s ex-boyfriends. Violet recalls their brief relationship, which ended when she discovered him cheating on her with his professor. He’s cruel, immature, and prone to tantrums.

Jack Barlowe: Presumed dead in Fourth Wing, Jack returns in Iron Flame as a rider, later revealed to be venin. In Onyx Storm, he spends the story as a prisoner, answering Violet’s questions in exchange for alloy-infused magic.

Imogen Cardulo: A ruthless third-year student and a growing ally to Violet. She helps protect Xaden’s secret and is devastated by the loss of her best friend, Quinn. Onyx Storm gives glimpses into her perspective, showcasing her relationship with her dragon, Glane.

Garrick Tavis: One of Xaden’s closest friends. Garrick reveals his second signet and proves to be an excellent distance wielder while helping protect Xaden’s secret.

Bodhi Durran: Xaden’s cousin and a third-year cadet. With his counter-signet, Bodhi is now second in line to become the Duke of Tyrrendor due to Xaden’s new title.

Jesinia Neilwart: A scribe from the Scribes Quadrant and part of Violet’s resistance movement. Although stripped of her path to adeptship, Jesinia remains loyal, using her knowledge to help fight dark wielders.

Colonel Aetos: Dain’s father and former advisor to Lilith Sorrengail. In Iron Flame, he’s revealed to be a villain working with venin. In Onyx Storm, he ascends to General of Basgiath, replacing Lilith.

Catriona Cordella: A talented flyer from Poromiel, Catriona joins Violet’s squad and becomes a steadfast ally. She accepts Xaden’s lack of interest in her and begins a relationship with another flyer, Trager.

Sloane Mairi: Liam’s younger sister and a siphon. She fears channeling after killing Lilith Sorrengail while powering the wardrone, but she assists Brennan and Mira in a pivotal moment.

Aura Beinhaven: A fire-wielding wingleader who opposes deserters rejoining Basgiath. She meets her end after killing a professor out of fear.

Felix: A calm, silver-bearded mentor who helps Violet master her lightning signet.

Viscount Tecarus: A political figure from Poromiel who becomes King in Onyx Storm.

Drake Cordella: Catriona’s cousin, a captain, and a researcher on dark wielders. His sense of humor lightens the mood.

Maren Zina: A petite gryphon flyer and Catriona’s best friend. After losing her parents, she saves her brothers and brings them to Aretia.

General Lilith Sorrengail: Violet’s mother. A rider at Basgiath War College, Lilith sacrifices herself to protect her children.

Naolin: Tairn’s former rider, mentioned briefly for saving Brennan during the Battle of Aretia.

Quinn Hollis: Imogen’s best friend and a third-year student with the signet of astral projection.

Lynx: A first-year bonded to a dragon and shadow wielder, serving as magic’s balance since Xaden has turned venin.

Colonel Lyron Panchek: Commandant of the Riders Quadrant, revealed as a venin spy.

Auxiliary Characters and continuing characters who don’t take the center stage in Onyx Storm

You will come across some of these names in the Onyx Storm Book, although you don’t need to remember them. Some names you will recognize from Fourth Wing and Iron Flame as well.

• Nolon Colbersy
• Winifred
• Kylynn
• Trissa
• Varrish
• Syrenna
• Emery
• Heaton
• Caroline Ashton
• Tara
• Major Afendra
• Captain Fitzgibbons
• Baylor Norris
• Avalynn
• Kai
• Jarrett
• Cohen
• Dyre
• Alic (Halden’s twin brother)
• Trager
• Markham
• Goverson
• Ewan Faber
• Colonel Chandlyr
• Major Dalton Sisneros
• Neve
• Hedley
• Iris Drue
• Kaveh

Professors in Onyx Storm

• Professor Carr helps cadets learn how to nurture their signets, develop shields and deal with lesser magic. 
• Professor Devera teaches Battle Brief. She has short hair and a black brow, a few shades darker than her mahogany skin tone. She has a new scar along her biceps.
• Professor Kiandra teaches battle brief with Devera. She is a flier.
• Professor Emetterio is essentially the PE teacher who oversees the physical training of all cadets.
• Professor Kaori has dark eyes and teaches cadets about dragons. He is an illusionist.
• Professor Grady teaches RSC (Rider Survival Course).

Royals and members of the senarium in Onyx Storm

• Duchess of Elsum
• Duke of Luceras
• Duchess of Morraine (Ilene)
• Duke of Calldyr
• King Tauri The Wise – King of Navarre
• Halden Tauri – First in line to become King of Navarre
• Aaric Greycastle – Second in line to become King of Navarre
• Duke Lewellen – Initially a duke, demoted to Earl in favor of the new Duke of Tyrrendor, Xaden Riorson
• Duke of Tyrrendor – Xaden Riorson become the Duke of Tyrrendor as per King’s decree. This was done to ensure that the riot of Aretia remains at Basgiath to protect the Kingdom of Navarre.
• Duke Lindell – The foster father to both Xaden Riorson and Liam Mairi.
• Queen Maraya – The Queen of Kingdom of Poromiel.
• Duke Tecarus – First in line to become King of Poromiel, a position he successfully attains in Onyx Storm.

Onyx Storm Dragons

A complete and detailed chart of all the dragons that appear in Onyx Storm with their names, their name meaning in Gaelic, their color, tail type if known and the human they are bonded with. Some of them you already know from Fourth Wing and Iron Flame.

Signets in Onyx Storm

We already know quite a lot about signets. Also, our main characters have their signets known but as we introduce new characters, we’re still finding out what they can do. In a new twist, we learn that Garrick also has in fact two signets (like potentially other marked ones too), and that Violet’s second signet is dream walking.

Gods mentioned in Onyx Storm

Amari – Goddess of Gods
Malek – God of Death
Zihnal – God of Luck
Dunne – Goddess of War
Hedeon – God of Wisdom
Loial – Goddess of Love

Onyx Storm Map

Surprisingly, the Onyx Storm map did not change, even though we introduced isles to the south. I anticipate that in Book 4 the map will contain these as well. Please note that there are three elements here which are on black background rather than white: Iakobos River, Tyrrendor Providence (with Lewellen, Aretia and Cliffs of Dralor) and Bay of Malek.

Onyx Storm Read Along

Want to read along and discover all the theories, Easter Eggs and discussions chapter by chapter? Then head to my Onyx Storm Read Along.

Onyx Storm Theories

• Onyx Storm Theory: Berwyn and Xaden are both from Tyrrendor
• Onyx Storm Theory: Tyrrendor always had dragon riders
• Onyx Storm Theory: Why was Violet touched by Dunne
• Onyx Storm Theory: How to get Xaden’s soul back
• Onyx Storm Theory: Are the dragons evil?
• Onyx Storm Theory: Who exactly is Berwyn
• Q&A with Rebecca Yarros – Answering our Onyx Storm questions
• Onyx Storm Theory – Violet will find Xaden (he taught her how)
• Onyx Storm Theory: Who turned venin at the end?
• Onyx Storm Theory: Love is all we need (well, at least what Xaden needs)
• Onyx Storm Theory: Sloane is life, Naolin was…not
• Onyx Storm Theory: Could Violet be pregnant
• Onyx Storm Theory: Imogen has a second signet
• Onyx Storm Ending Explained
• Onyx Storm – Recap and What do we know so far
• The Last Teaser Is Here: Rebecca Yarros’ Onyx Storm Begins with a Bang!
• Rebecca Yarros’ clue: Violet’s second signet has to do with truth
• Onyx Storm Theory: We know the herbal remedy for venin. It’s in every single book
• Onyx Storm Theory: Liam is dead, but he isn’t actually gone
• Onyx Storm Theory: Markham is venin
• Onyx Storm Official Excerpt: What does it all mean?
• Onyx Storm snippet: Plus new theories
• Onyx Storm Theory: Violet knows the herbal remedy for…venin?
• Onyx Storm Theory: The Colors of Bonds is super relevant
• Iron Flame Unhinged Theory: Those who do not burn for Malek, get their loved ones back
• Iron Flame Theory: Violet’s second signet could be storm wielder
• Onyx Storm Theory: There is a connection between Orange dragons and feathertails
• Onyx Storm Theory: Dragons’ hatching grounds connected to royal and heir eyes
• Onyx Storm Theory: Is Violet’s second signet to do with control?
• Onyx Storm Theory: Xaden’s control will snap
• Onyx Storm Theory: Violet’s second signet is distance wielder
• Onyx Storm Theory: Garrick Tavis’ signet is map/compass
• Fourth Wing and Iron Flame Theory: Dain is neurodivergent
• Iron Flame Theory – Violet’s second signet is dream-sight
• Onyx Storm Theory – Tairn is the Onyx, not Xaden
• Onyx Storm Theories – A complete collection
• Onyx Storm
• Rebecca Yarros Book 3 – Onyx Storm Teasers
• Rebecca Yarros Book 3 – Onyx Storm Title Meaning
• Rebecca Yarros Book 3 – Onyx Storm January 21st, 2025
• Predictions for Book 3 Empyrean Series
• Book 3 release date, Empyrean Series by Rebecca Yarros