Spoiler alert!
Cere Junda is a character with a large amount of depth. She is an ex Jedi who chose not to use the force due to a traumatic experience. In a moment of weakness, under prolonged torture, Cere gave up the location of her padawan in order to save the lives of many force users. This padawan turns out to be Trilla; the very same Inquisitor who is now hunting Cal.
Cere carries this guilt and is tortured by the thought of having turned on her own padawan. In a sense, Cal's mission becomes her redemption arc.
Visually, we played with the idea of giving her physical signs of trauma like a scar or a cane. The story edits called for a more civilian look that reflected her practicality so we went with her shedding her long hair and Jedi robes and minimizing any ornaments.