Elayne and Owain do not have unique sprites and instead use sprites for generic NPCs. Elayne wears a long red skirt with a white blouse and a hairband. Owain wears a red jumper and cap. Both have dark blond hair and blue eyes.
Elayne is calmly supportive and encouraging of her husband, and tries to get him to be more open about his emotions in private. Owain is cheerful and energetic and eager to spend time with his father. Both deeply love Cyan and want him to move on with his life and find peace after their deaths.
Elayne married Cyan, a samurai and high-ranked warrior to the service of the king. They were happily married and had a son, Owain, who had a close relationship with his father. Cyan's life as a warrior made it difficult for him to admit his love for his wife, who wanted him to be more open.
During the Siege of Doma, Cyan repelled an Imperial raid and the Domans sequestered for a prolonged siege. To break the siege, Kefka poisoned the castle's water supply, killing all citizens but Cyan and a sentry. Cyan rushed to his family's room after checking on the king, but found them already dead. Stricken with horror and wracked in grief Cyan charged the Imperial Camp and attacked the Imperials. Sabin and Shadow saw him, and the three joined forces to escape the camp and flee the region.
The three came upon the Phantom Train, a ghostly locomotive that ferries the spirits of the dead to the afterlife. The three defeated the train's engine to force it to allow them to disembark at its next station. While the three got off, the spirits of the victims of Doma's fall boarded, including Elayne and Owain. Cyan recognized them, but the train began to pull away. Cyan ran along the platform and called out to them, and they stepped outside to bid farewell to him before the Phantom Train vanished.
When the Dream Stooges attacked Cyan, his friends entered the dreamscape to fight them off. The spirits of Elayne and Owain appeared to the party and told them Wrexsoul was the creature tormenting him. Within the dreamscape of Doma Castle, the party witnessed memories of Cyan's family life, training Owain and teaching him how to fish, and being coaxed by Elayne to say he loves her.
The party destroyed Wrexsoul and freed Cyan, who claimed he could hear his family calling to him. Elayne and Owain appeared to him and praised his strength, but Cyan denied them and felt he had lost his honor. The two reassured him and vanished, leaving behind a katana known as the Masamune for Cyan to wield in their memory.
In Final Fantasy XIV, Lord Hien, the current heir to Doma, had the name Shun in his childhood. His parents were named Mina and Kaien. These names refer to the Japanese names of Owain, Elayne, and Cyan, respectively.
In Final Fantasy XIV Sigmascape V1.0, after the party defeated the Phantom Train, two souls appeared before the Warrior of Light and say "Traveler from afar... Thank you for Doma." They look like Elayne and Owain from Final Fantasy VI, but don't have anything to do with Kaien and Hien of Final Fantasy XIV, since these souls were actually a recreation by Omega from their original world.
Elayne is a female given name of French origin, which means "light".
Owain is a name of Welsh origin.