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Real Name: Grosso

Identity/Class: Extradimensional (War-Dust Dimension) extraterrestrial (War-Dust people) (World War II era)

Occupation: Warrior

Group Membership: None

Affiliations: None

Enemies: "Smoke-Men", Vision (Aarkus), US military manufacturing workers

Known Relatives: None

Aliases: None

Base of Operations: War-Dust Dimension

First Appearance: Marvel Mystery Comics#24/7 (October, 1941)

Powers/Abilities: Like others of his kind from the War-Dust Dimension, Grosso is composed of minute metallic dust particles. He has superhuman strength and heightened durability, which is augmented by his armor, although this can be compromised by certain Earth-based chemicals. Grosso can manifest from the War-Dust Dimension via aluminum dust; once he has a foothold on Earth, he can phase (briefly) between dimensions, thereby having wraith-like intangibility at will. Grosso can cast minute aluminum dust particles that can poison human lungs, even penetrate skin by forceful touch and concentration.

Height: 7' (by approximation)
Weight: 280 lbs. (when fully manifested, by approximation)
Eyes: Black
Hair: Black (beard shown only)


(Marvel Mystery Comics#24/7 (fb) - BTS) - The War-Dust people, composed of "War-Dust" in the War-Dust Dimension (also called the War-Dust World) worshiped war, fighting wars on a grand scale with advanced and elaborate weapons for slaughter and destructions. They hated the peace-loving "Smoke-Men" from another dimension. However, they sought expansion to wage new wars; one warrior, Grosso, found access to Earth using the aluminum dust generated in American factories manufacturing weaponry.

(Marvel Mystery Comics#24/7) - Grosso manifested in physical form from metallic dust at an American arms factory. Grosso answered the workers' amazement with threats and destruction. Drawn by the chaos, the Vision (Aarkus, from the "Smoke Men"'s  dimension) materialized via smoke from a nearby furnace and attacked, but Grosso caused an explosion as diversion to escape. Soon, Grosso struck at a warplane factory, but Aarkus was ready for him and they fought. Aarkus used a fire extinguisher whose chemicals somehow paralyzed Grosso's arm, but the warmonger cast aluminum dust in a ventilator fan to scatter and poison workers to distract Aarkus, who stopped his plan. Grosso leapt onto Aarkus, trying to penetrate Aarkus' skin with aluminum into his bloodstream and kill him, but Aarkus toppled a vat of molten lead onto Grosso, apparently destroying him. Aarkus returned to the Smoke Dimension.

Comments: Created by Joe Simon, Jack Kirby, Al Avison.

A pity we never get to see or learn anything more about the War-Dust Dimension or its denizens. Could there be some sort of connection to a war god...?

Credits as per the Marvel Masterworks collection (which also credits Al Avison + other unknown as inkers).

This profile was completed 09/15/2021, but its publication was delayed as it was intended for the Appendix 20th anniversary's celebratory event.

Profile by Grendel Prime.

Grosso has no known connections to:

images: (without ads)
Marvel Mystery Comics#24/7, p3, pan1 (main image)
   p2, pan2 (headshot)
   p5, pan2 (manifesting from metal dust)

Marvel Mystery Comics#24/7 - Joe Simon & Jack Kirby (writers), Jack Kirby (pencils), Al Avison (inks, plus 1 other unknown), Joe Simon (editor)

First posted: 09/23/2021
Last updated: 09/22/2021

Any Additions/Corrections? please let me know.

Non-Marvel Copyright info
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