A male human physicist, Xylan Graf, was a member of the Graf family. He was born circa 253 BBY and existed during the High Republic Era. This time's individual was present on the [capital](/article/capital] planet of Coruscant together with the hauler Sylvestri Yarrow. Although Yarrow found Graf physically appealing, she disliked his character.
The character Xylan Graf made his debut in the novel The High Republic: Out of the Shadows. This book was authored by Justina Ireland and released on July 27, 2021 as a component of Phase I of the Star Wars: The High Republic multimedia project. Graf's initial visual representation occurred in a Star Wars: The High Republic Show episode on September 15, 2021, featuring artwork created by MinJi Yoon.
Initially, Ireland planned for Sylvestri Yarrow to be involved in a love triangle with her former girlfriend, Jordanna Sparkburn, and Graf in the original version of Out of the Shadows. However, Ireland decided against this idea midway through the first draft, as neither she nor Yarrow found Graf particularly likable. Ireland mentioned that Graf's clothing styles were largely inspired by Prince and Jem and the Holograms.