Bax Silver

Bax Silver (バックス＝シェルヴァ) is a character introduced in Shinyaku Toaru Majutsu no Index. He is a one of the few people Saronia A. Irivika controlled using her magic.

Background
Prior to his introduction, Bax Silver's mind was taken over by Saronia, and was probably used to ascertain the location and information regarding Trigger.

Hawaii Invasion Arc
He first appears with a couple of MPs just after Nike Canox let Roberto Katze, Kamijou Touma, Accelerator, Misaka Mikoto and Leivinia Birdway into Pearl Harbor. Here, he was shown to act strangely around the president, hesitating to answer him when he questioned Bax regarding Trigger. He later points that the Trigger is in the runway in one of the transport planes, however, he then tries to shoot the President, which forces the MP with him to apprehend him.

It is unknown what has happened to him during the Fall of Pearl Harbor.