1. Queen Morgase Of House Trakand
Queen Morgase first appears in Jordan's first Wheel of Time novel, The Eye of the World, and though she is mostly absent from the next book, she begins to take on a more expanded role in book three, The Dragon Reborn. This book was supposedly incorporated into The Wheel of Time season 2, though the majority of its story including Morgase's role ended up being cut.
Queen Morgase's Lion of Andor Banner from The Wheel of Time.
2. Elaida do Avriny a'Rhoihan
Elaida do Avriny a'Rhoihan is an Aes Sedai of the Red Ajah who becomes a particularly important character in book four, The Shadow Rising the book The Wheel of Time season 3 is adapting. Elaida's most important book story could be given to another Aes Sedai, but she is so important to Jordan's novels that there's a good chance she appears in The Wheel of Time season 3.
Elayne in The Wheel of Time Season 2 on Amazon Prime Video
3. Galadedrid Of House Damodred
Galadedrid of House Damodred, better known as Galad, is the stepson of Queen Morgase and the half-brother of Gawyn and Elayne Trakand. He ultimately rises high in his chosen role in the world and comports himself heroically at The Last Battle, so fans can expect to see him in the show very soon.
Nynaeve, Elayne, and Egwene standing in The Wheel of Time.
4. Gawyn Of House Trakand
Gawyn is one of the finest swordsman in the land, and though he is young and brash, he is also a skilled commander. Expect Gawyn to make his debut in The Wheel of Time season 3, especially after his name was briefly mentioned in season 2.
Elayne looking concerned in The Wheel of Time season 2
5. Cadsuane Melaidhrin
Cadsuane is nearly 300 years old in the main series, and she is one of the sternest and wisest characters in the saga. She plays integral roles in several key events throughout the series, and though she is not scheduled to appear yet based on the book series, the show could easily decide to introduce her early since she is such a popular character.
Elayne Trakand looking excited in Wheel of Time season 2.
6. Rhuarc
Rhuarc is the clan chief of the Taardad Aiel and one of the most important members of the Aiel in The Wheel of Time. Rhuarc is one of the first Aiel to accept Rand as the Car'a'carn the Aiel's name for the Dragon and with Rand expected to journey to the Aiel Waste in The Wheel of Time season 3, it's likely Rhuarc will finally make his debut then.
The colors of the Aes Sedai Ajahs on a mural in The Wheel of Time.
7. Rahvin
Rahvin is one of the most powerful channelers ever and a member of the dreaded Forsaken. If this storyline is included in the show, then Rahvin/Gaebril's debut should align with Queen Morgase's. Therefore, it's likely he will appear in The Wheel of Time season 3.
Elayne and Nynaeve from the wheel of time against a backdrop of the book covers.
8. Pedron Niall
Pedron Niall, the Lord Captain Commander of the Children of the Light, is one of the most intriguing and nuanced villains in The Wheel of Time. It's possible he could be cut from the show and Eamon Valda could remain the main antagonist from this faction, but Niall is such a fascinating character that it would feel like a real disservice to the source material to exclude him.
Lan and Stepin sparring in The Wheel of Time season 1.
9. Zarine/Faile Bashere
Faile and Perrin become inseparable as the story continues, and it's unlikely the show will cut one of the most successful relationships from the books. Her father, Davram Bashere, is also one of the four Great Captains on the continent, making their story nigh on indispensable.
Aes Sedai stand in the hall of the tower in The Wheel of Time
10. Gaul
In the books, he is a nearly constant companion to Perrin, and since they make such a great team, the hope is that he will be introduced in The Wheel of Time season 3.
Bain, Chiad, and Aviendha with weapons ready in The Wheel of Time.
11. Gareth Bryne
Bryne is a faithful servant and a fine soldier, considered to be one of the greatest military commanders of the age. However, The Wheel of Time is approaching that point in the series as it ventures into book four, making it likely Bryne will appear in the show soon.
Aviendha, Bain, and Chiad look at Loial in The Wheel of Time season 2.