EVA Mark.04 is a Mass Production Evangelion unit appearing in Rebuild of Evangelion. It serves as an enemy Evangelion-type machine associated with NERV and later SEELE-related forces, designed for large-scale deployment and combat. The unit is notable for its eerie, mechanical appearance and its role as part of the antagonistic Evangelion forces that threaten the protagonists. It functions primarily as a weaponized production model rather than an individual character, emphasizing the series’ themes of dehumanization, control, and militarized technology.