Shaak Ti is a Togruta Jedi Master from Shili, introduced in Attack of the Clones (2002) and played by Orli Shoshan. She survives the Geonosis arena, joins the High Council, and spends much of the Clone Wars on Kamino overseeing the training of the army the Jedi are about to command.
That posting is the whole character. Somebody had to stand in the cloning facility and sign off on the troopers, and the fiction has repeatedly used her to ask what she should have noticed. The Clone Wars gives her a real relationship with the cadets of Domino Squad; the 2021 series The Bad Batch returns her to Kamino at the moment the Empire decides the cloners have outlived their usefulness.
Her death is a famously tangled production story. Sequences of her being killed during the assault on the Jedi Temple were filmed or animated for Revenge of the Sith and cut; the version that made it into canon is the Temple death shown in later material. On this site we file only what shipped: she is on the Council through the war, she is at the Temple when it falls.
She is a good example of a design that outran its screen time. Shaak Ti has perhaps two minutes of dialogue in the films and a substantial afterlife in animation, games and merchandise — the Togruta head-tails did more for her career than the script ever did.