The most iconic Thanos covers: a collector's guide

Thanos is entirely a Bronze Age creation: he debuted in February 1973 in Iron Man #55, written and drawn by Jim Starlin. There are no Golden Age or Silver Age Thanos comics — any reference to a "Silver Age Thanos key" would be an error. His publishing career breaks into three distinct phases: the Bronze Age Starlin era (1973–1977), the 1990 return in Silver Surfer and Infinity Gauntlet, and the modern era with Donny Cates's Thanos vol.2 (2017). On screen, Josh Brolin played the character in Avengers: Infinity War (2018, $2.05 billion worldwide gross) and Avengers: Endgame (2019, $2.80 billion), the two highest-grossing Marvel films ever made.

This guide cites only verifiable data: eBay medians from our estimator (eBay.fr + eBay.com, June 2026) and records documented by specialist sources. The eBay median for Iron Man #55 (€9) is a blended figure that mixes all grades and all printings, and it dramatically understates the value of high-grade copies. The Infinity Gauntlet and Thanos Quest are not covered by our tool: values cited for those series come from documented external sources.

Key Thanos cover ranking (verified data, June 2026)

Iron Man #55 is the only Thanos key covered by our estimator with solid volume. Silver Surfer #34 and Avengers #125 also carry reliable medians. Silver Surfer #44 has only 12 listings — too few to cite a median. The Infinity Gauntlet and Thanos Quest are not covered by the tool.

Record sources: sellmycomicbooks.com, Bleeding Cool, Wikipedia, GoCollect. The Iron Man #55 eBay median is blended (all grades/printings) and reflects entry-level pricing — CGC 9.8 copies command substantially more.

Iron Man #55 (1973): the birth of the Mad Titan

Published in February 1973, the cover of Iron Man #55 shows Iron Man caught in the grip of the Blood Brothers, servants of Thanos. Plotted and penciled by Jim Starlin (co-script: Mike Friedrich), the issue marks the simultaneous first appearance of Thanos, Drax the Destroyer, Mentor, Kronos, and Starfox — an unusually rich single-issue debut. Starlin conceived Thanos during college psychology classes, drawing on Freud's concept of Thanatos — the death drive — and on Jack Kirby's Darkseid from DC's New Gods.

Our estimator returns a median of €9 across 73 listings, but that figure blends every grade, printing, and condition. High-grade data tells a very different story: approximately $9,600 for a CGC 9.8 copy in 2022 per sellmycomicbooks.com; a CGC 9.8 double-cover variant reached $13,025 as far back as 2013. The issue appears regularly in Overstreet's lists of essential Bronze Age keys.

The Captain Marvel saga and Avengers #125 (1973–1974)

Fresh from his debut, Thanos became the central antagonist of Captain Marvel #25–33 (March 1973 – January 1974, written and drawn by Starlin) — the "Thanos War," in which he pursues the Soul Gems to destroy the universe before being stopped. Avengers #125 (July 1974) extended that storyline into Marvel's flagship title. Our estimator returns a median of €9 across 54 listings for that issue — a solid volume reflecting an active entry-level market. Thanos's first death is staged in Marvel Two-in-One Annual #2 (1977), followed by a long editorial absence.

Silver Surfer #34 (1990): the Titan returns

In February 1990, Jim Starlin returned to Marvel and relaunched Thanos in Silver Surfer #34. Ron Lim's cover — a resurrected Thanos standing against the cosmos — marked the start of the Starlin/Lim run that led directly to The Infinity Gauntlet. The "Rebirth of Thanos" arc (Silver Surfer #34–38) has since been collected in trade paperback under that title. Our estimator returns a median of €19 across 55 listings — the strongest volume among any 1990s Thanos return issue. For Silver Surfer #44, the count is just 12 listings: too few to cite a reliable median.

The Infinity Gauntlet #1 (1991): the George Pérez cover

Published in July 1991, the cover of The Infinity Gauntlet #1 is the single most reproduced image in Thanos's history: the Titan standing with the Gauntlet raised, surrounded by Marvel heroes against a cosmic sky. George Pérez — who penciled the first three issues of the six-part series written by Jim Starlin — signed the artwork. Ron Lim completed the series from issue 4 onward. The miniseries (July–December 1991) represents the narrative and visual peak of the character in comics. It remains one of the most in-demand modern-age Marvel miniseries among collectors, particularly in CGC 9.8.

Our tool does not cover this series, so no verified eBay median can be cited. CGC 9.8 copies are actively traded on the secondary market, with copies signed by Starlin or Pérez commanding a meaningful premium. For any copies you own in series our estimator does cover, the tool can give you a current eBay-based valuation.