David Bowers is the actor who portrayed Mas Amedda in Attack of the Clones and Revenge of the Sith.
Sources[]
"Star Wars Prequels Unseen!, Part 3" — Star Wars Insider 150
Star Wars: Build Your Own R2-D2 97 (Building the Galaxy: Moments in the Making)- Star Wars: The Skywalker Saga – The Official Collector's Edition