Eedy Karn was a Coruscant resident, specifically on Level 91, and a human woman. She held the role of mother to Syril Karn, who held the rank of Deputy Inspector. During 5 BBY, Syril Karn's unexpected arrival took Karn by surprise. Her initial welcome was a sharp slap, which transitioned into a tearful embrace. Following a scolding directed at a bystander, she brought Karn and his belongings inside.
The character Karn debuted in "Aldhani," the fourth episode of the Andor television show, which was broadcast on September 28, 2022. Kathryn Hunter played the role. Hunter revealed her involvement in Andor Season Two through an Instagram post that was later removed.
Kyle Soller, who portrayed Syril Karn, and Hunter worked together to develop a backstory about Syril's father, depicting his early and unpleasant departure. They posited that Eedy's mistreatment shaped her parenting of Karn. The performers considered that Syril's character was shaped by Eedy's feelings of anger, sorrow, letdown, and annoyance stemming from his abandonment.