Dee Bradley Baker (born August 31, 1962) is an American voice actor known for being in Spongebob Squarepants and American Dad, and provided the voice for the Clone Troopers in Star Wars: The Clone Wars. He voices Ephraim Bridger, Kassius Konstantine and Old Jho as well as Captain Rex, Commander Wolffe, and Gregor, roles he reprises in Star Wars Rebels.