Katooni was a female Tholothian Jedi youngling who served the Jedi Order during the Clone Wars. Like all Tholothians, Katooni had a scaled headpiece with a dozen pale hanging tendrils. She was very patient, as shown when she waited to complete her lightsaber. She was trusting, believing in Hondo Ohnaka when he told her he would help rescue Ahsoka Tano. She appeared to have a fear of heights, as she was reluctant to climb the cliff in the Crystal Cave on Ilum. While very kind, Katooni was not afraid to call out Petro on numerous occasions.
At some point during the Clone Wars, Katooni participated in the Gathering, and while on the training mission, Katooni and the other younglings, Petro, Zatt, Ganodi, Gungi, and Byph, had many adventures including a rescue mission to Florrum and a battle against Grievous and his droid army.
After returning to the Crucible, she waited to finish her saber. However, the Ohnaka Gang attacked the Jedi ship, taking Ahsoka Tano prisoner. After disobeying a direct order from Obi-Wan Kenobi, the younglings launched a successful rescue mission, though Grievous attacked the planet and destroyed all of the Ohnaka Gang's fleet, leaving the younglings, Huyang, and Ahsoka stranded.
Katooni and the others launched an attack on the pirate stronghold, rescuing Hondo and his men. They then fled to the hangar, which housed Hondo's secret fleet. Hondo intended to leave Ahsoka and the others, who had engaged Grievous, though Katooni convinced him to return to rescue them.
Katooni also appeared in a vision to Yoda.
- Star Wars: The Clone Wars – "The Gathering" (First appearance)
- Star Wars: The Clone Wars – "A Test of Strength"
- Star Wars: The Clone Wars – "Bound for Rescue"
- Star Wars: The Clone Wars – "A Necessary Bond"
- Star Wars: The Clone Wars – "The Wrong Jedi"
- Star Wars: The Clone Wars – "Destiny" (Vision to Yoda)
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