Birdman emerged from the G Project as the first Galerian, an artificial human forged by the supercomputer Dorothy. His striking heterochromia—one brown eye, one blue eye—mirrors his fractured psyche. Possessing an attractive, alabaster appearance, this paleness feeds his narcissism. Acting on Dorothy's command, he relentlessly pursues Lilia Pascalle, seeing Rion Steiner solely as a tool to locate her.

His primary weapon is psychic teleportation, though each jump exacts a toll in crippling headaches and physical anguish. Birdman revels in destruction, finding dark satisfaction in the psychological and physical torment he inflicts, particularly during clashes with Rion. This drives him into repeated, violent confrontations, beginning at the Steiner home. Beneath the overt psychosis, aggression and instability may mask profound self-loathing, a coping mechanism for his manufactured reality.

In their final battle at the Steiner residence, Birdman correctly intuits Rion has discovered Lilia's location and launches a desperate attack. Defeated by Rion, Birdman dies delivering a cryptic warning: "be careful of himself," acknowledging their shared Galerian nature. His death marks an early casualty in the broader conflict against Dorothy's creations.