Bardiel is the Thirteenth Angel in the Rebuild of Evangelion film series, specifically appearing in 'Evangelion: Shin Gekijouban' (Rebuild of Evangelion). Bardiel is a mysterious and hostile entity that takes possession of Evangelion Unit-03, corrupting it and turning it against NERV. The Angel's infection leads to a tragic confrontation, testing the resolve and relationships of the main characters. Bardiel plays a significant role in escalating the psychological and emotional stakes of the story.