Septa Unella

"Shame! Shame! Shame!"

- Unella during Cersei Lannister's walk of atonement. "Good. I'm glad to see your face. I'm ready to meet the Gods!"

- Unella to Cersei.

Septa Unella is a character in A Song of Ice and Fire Franchise, both books and TV show. She acts as a minor antagonist in Cersei's storyline in Season 5 and Season 6.

History
After Cersei's conversation with High Sparrow, he has Unella arrest her and throw her in the cell. Unella occasionally visits Cersei, offering her ladle of water and asking her to confess her sins in return. Cersei, however, refuses stating that her face will be the last thing she'll see before she die. Cersei, eventually swallows her pride and confesses adultery with her cousin Lancel. The High Sparrow organizes her Walk of atonement in which Cersei is stripped naked and publicly shamed. During the walk, Unella is chanting "shame" until Cersei arrived to the Red Keep.

In Season 6, Unella reads Seven Pointed Star to imprisoned Margaery Tyrell, while urging her to confess. After the queen's demand to see her brother Loras, septa moves to strike her, but High Sparrow enters the cell and stops her. After Margaery was released, she is assigned by the High Septon to keep an eye on her. Upon the destruction of Great Sept of Baelor, Unella is imprisoned and tortured by Cersei. She pours some wine on her and leaves her to be tortured by The Mountain while vengefully chanting "shame".

Her fate is ultimately unknown since Cersei stated to her that she wouldn't die for quite some time. It is possible that she is still a prisoner in the Red Keep.