Marvin is a Unopan scientist and the mind behind Allen the Alien, whom he engineered as a living weapon against the Viltrumites. A survivor of his people's near-extinction, he devotes his life to their defense.
Marvin has a large, drawn-out head lined with deep wrinkles and ridges that give him an ancient, thoughtful air. A single eye sits at the center of his face, and he has no visible nose, just a heavy brow above a broad mouth. Slight and delicate next to Allen, his frail build makes plain that he is a thinker rather than a warrior, with everything about his design pointing to the role of a scientist.
Marvin is fiercely devoted to his people. He has poured what remains of his life into the goal of overcoming the Viltrumites and securing the survival of the Unopans, treating that mission as his single guiding purpose.

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Born on Unopa, Marvin saw his homeworld overrun by the Viltrumites, one of the galaxy's mightiest species, an invasion that pushed the Unopans to the brink of extinction. He and a handful of others managed to flee, abandoning their planet behind them. Determined to rebuild his species, he set up breeding camps across scattered Unopan outposts, and word of this effort drew powerful notice. Impressed by the Unopans' will to endure, Thaedus, leader of the Coalition of Planets, sought Marvin out.
The two joined forces to design a fighter capable of standing against a Viltrumite, and their work produced Allen the Alien. Even with that formidable strength, however, Allen still fell short of the Empire's soldiers. Marvin allied himself with the Coalition, resettling on Talescria as he continued his stand against the Viltrum Empire.
Marvin is a Unopan scientist in Invincible and the creator of Allen the Alien, whom he engineered as a living weapon to fight the Viltrumites after his own species was nearly wiped out.
After fleeing his destroyed homeworld of Unopa, Marvin resettles on the planet Talescria, where he continues working with the Coalition of Planets against the Viltrum Empire.
Marvin designs Allen the Alien, engineering him as a fighter powerful enough to stand against a Viltrumite soldier, though Allen still falls short of the Empire's own troops.
Marvin's homeworld, Unopa, is overrun by the Viltrumites, one of the galaxy's mightiest species, an invasion that drives the Unopans to the brink of extinction and forces Marvin and a handful of survivors to flee.
Marvin allies with Thaedus, leader of the Coalition of Planets, who seeks him out after being impressed by his efforts to rebuild the Unopan people through breeding camps at scattered outposts.
Looking for more on Marvin? The Invincible Wiki on Fandom has a dedicated page with community notes.
View on FandomThis content is original writing by Daddy Jim Headquarters based on the Invincible anime series, manga, and official materials. Invincible was created by Robert Kirkman, Cory Walker and Ryan Ottley, published by Image Comics / Skybound, and animated by Skybound Animation. All rights to Invincible and its characters belong to their respective owners. Episode and chapter references are cited where applicable.
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