Geldoff

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Geldoff
Geldoff as depicted in Ultimate Spider-Man #42 (March 2003). Art by Mark Bagley.
Publication information
Publisher	Marvel Comics
First appearance	Ultimate Spider-Man #40 (July 2003)
Created by	Brian Michael Bendis Mark Bagley
In-story information
Alter ego	Geldoff
Species	Human mutate
Notable aliases	Proton
Abilities	Ability to generate and discharge explosive energy balls

Geldoff is a character appearing in American comic books published by Marvel Comics. He first appeared in the Ultimate Marvel Universe's Ultimate Spider-Man #40 (July 2003) written by Brian Michael Bendis with art from Mark Bagley. Geldoff was brought to Earth-616 by Dan Slott and Christos N. Gage in Avengers: The Initiative #8 (February 2008), where he was given the code name, Proton.

Geldoff was a Latverian orphan, he was adopted by an American couple and moved to New York, and studied at Queens.

This article describes a work or element of fiction in a primarily in-universe style. Please help rewrite it to explain the fiction more clearly and provide non-fictional perspective. (October 2009) (Learn how and when to remove this message)

Geldoff is a Latverian orphan who was experimented on in the womb, gaining the ability to generate explosive orbs of energy. He battles Spider-Man, who attempts to persuade him into becoming a hero, before being sedated by the X-Men. After learning of Geldoff's origins, Professor Xavier plans to present him to scientific organizations and the United Nations as proof of illegal genetic research.^[1]

Geldoff can generate and discharge explosive energy balls, and appears to be resistant to his own powers.^[2]

Geldoff's Earth-616 counterpart first appeared in Avengers: The Initiative #8 (February 2008), and was created by Dan Slott and Christos Gage and artist Stefano Caselli. This version is a member of the Fifty State Initiative before being killed by a Super-Skrull during Secret Invasion.^[3][4]

A separate character based on Geldoff named Geldhoff appears in Inhumanity. This version is an Inhuman whose powers activated after Attilan was destroyed, releasing Terrigen Mist into Earth's atmosphere.^[5]

• Ultimate Spider-Man (story arcs)
• Ultimate Spider-Man

• Geldoff (Ultimate) at the Comic Book DB (archived from the original)
• Proton at the Comic Book DB (archived from the original)
• Ultimate Geldoff at Marvel Directory
• Geldoff (Ultimate) at Marvel.com Universe