Mas Amedda was the Vice Chair of the Galactic Senate during Chancellor Valorum's term, a position he continued to hold as Chancellor Palpatine transformed the Republic into the Galactic Empire. Amedda's booming voice often called for order when the partisan nature of the Republic's government degenerated into pointless bickering. In an alien gesture of authority, he would often punctuate such calls with a flicker of his long, forked tongue.
A canny Chagrian politician, Mas Amedda served as the Republic’s Vice Chancellor under Valorum during the Naboo crisis. When Senator Palpatine succeeded Valorum as Chancellor, Amedda retained his position under the Republic’s new leader.
Amedda was one of the few in the galaxy who knew Palpatine was a Sith Lord, and assisted the Chancellor as Speaker of the Senate, helping him manipulate Senators into granting him more and more power.
Palpatine’s triumph over the Separatists and the Jedi was also Amedda’s – he stood beside Palpatine as the Republic was declared dead, replaced by the First Galactic Empire.
THE DARK TIMES
Amedda’s loyalty was rewarded – years later, he remained at Palpatine’s side as Grand Vizier of the Empire, summoning military leaders such as Grand Moff Tarkin to Coruscant and greeting governors such as Lothal’s Arihnda Pryce.