This Mandalorian fighter belonged to the Death Watch group throughout the Clone Wars era.
Circa 22 BBY, this warrior and a Mandalorian comrade stood guard at the Death Watch's secret base located on Concordia. When Jedi General Obi-Wan Kenobi investigated a derelict mining complex, the pair ambushed and apprehended him. The Jedi subsequently rendered both warriors unconscious.
Sometime later, this warrior, in the company of two other Mandalorians, accompanied Pre Vizsla and observed his lightsaber battle with Obi-Wan Kenobi. After Vizsla's defeat, he commanded the three Mandalorians to eliminate the Jedi. They responded by activating their jetpack missiles and launching them at Kenobi and the Duchess. Kenobi and the Duchess evaded the attack by leaping down the elevator shaft, resulting in the missiles impacting the wall.
The voice of this Mandalorian was provided by Corey Burton, who also lent his voice to Cad Bane and Count Dooku in The Clone Wars television show.