Senator Gall Trayvis is a character who appears in the Disney XD animated series Star Wars Rebels. He is a member of the Imperial Senate. He posed as a dissenter of the Galactic Empire and a voice of truth. It was however all an act and was in fact an Imperial agent who tricked Rebels into coming out of hiding so they could be identified and captured.
Star Wars Rebels
During lightsaber practice, Ezra has a fragmented vision of meeting Gall Trayvis, an exiled Imperial senator and rebel sympathizer, and assumes that Trayvis knows about his parents. The rebels receive a transmission from Trayvis notifying them of a secret rally on Lothal, but Ezra receives a tip from Zare Leonis that Kallus is planning to use the senator to lure the rebels into a trap. Following Trayvis's transmission, the rebels find him and save him from Kallus by escaping into Lothal's sewer systems. To Ezra's dismay, Trayvis reveals himself to be an Imperial spy who has used his anti-Imperial transmissions to identify rebel sympathizers, and claims that Ezra's parents are dead and gone. Having suspected his treachery, Hera outsmarts Trayvis and knocks him out so that the rebels can escape. Although disappointed by the betrayal, Ezra and the other rebels remain hopeful of their cause.