A consummate industrialist, Wat Tambor was the Foreman of the
Techno Union, a galactic institution concerned with technological innovation. Tambor was eager to escape from the choking bureaucracy of the Republic Senate, and readily joined the
Confederacy of Independent Systems. He not only committed his army of
battle droids to the cause, but also hosted the meeting of the Separatists minds at one of the Techno Union's droid foundries on
Geonosis.
As befitting a technocrat, Wat Tambor is entirely encased in machinery and is even reliant on technology to speak. His deep, resonant voice is strangely mechanical, modulated by a set of dials built into his torso.
During the Clone Wars, Tambor served on the Separatist Council, the board of executives that funded and governed the Confederacy of Independent Systems under Count Dooku and General Grievous. The Foreman was killed by Darth Vader when the Sith mastermind behind the Clone Wars no longer had need for the Separatists.