The Katula is one of the Circle in the Tarn Empire. It is also known as the 'Circle of the Gold Talon.' The circle symbol for the Katula circle is a grey circle with a gold embossed talon, claws extended. Gadin is the commander of the Katula circle in 2367. Harna Karish was adopted into the Katula circle and took over the leadership when Gadin was killed. Jarah was a warrior in the Katula circle who was killed in 2367. (TNG novel: The Forgotten War)