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Intro. noble, empathetic warrior with a peculiar sense of humor, Allen, the alien in Invincible, is characterized by being a noble, empathetic warrior with a peculiar sense of humor, even in the midst of combat. Originally a solitary "Champion Evaluation Officer", he develops a strong friendship with Mark Grayson after apologizing for an attack error, evolving into a crucial ally against the Viltrumites thanks to his great strength and loyalty.  This video tells the complete story of Allen the alien:

Allen the Extra-Terrestrial

@Dasha