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Captain Marvel Adventures #125 cover
Cover: C. C. Beck

Captain Marvel Adventures #125

Oct 1951 · Fawcett · 0.10 USD
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★ 1st appearance — King Kull
About this Issue

Captain Marvel Adventures #125 holds a firm place in Golden Age history as the origin and debut of King Kull, one of the most conceptually distinctive antagonists in the Shazam mythology — a technologically advanced prehistoric ruler who survived into the modern era in suspended animation, embodying a pulp-science-fiction twist on the caveman archetype that set him apart from Fawcett's other villains. The character proved durable enough that, after DC acquired the Fawcett properties, King Kull was revived in the 1970s as the central threat of a landmark three-part JLA/JSA/Squadron of Justice crossover in Justice League of America #135–137, meaning a single late-Fawcett issue directly seeded one of DC's most celebrated inter-title team-up events. The issue also introduces Prof. Jonathan Swope, a minor but documented first appearance, and features Sivana and a robot character named Timmy Tinkle, making it a notably dense anthology entry even by the era's prolific standards. Arriving in October 1951, just two years before Fawcett shuttered its superhero line under legal pressure from DC, it represents one of the last major creative additions to the Fawcett Captain Marvel rogues' gallery.

Contains 7 stories
The Return of the Ancient Villain
9 pp · Superhero
Captain Marvel [Billy Batson]King Kull (villain, introduction, origin)
Some Choke
1 pp · Humor
Extinguished Character
0.7 pp · Humor
The Dilemma of the Double Identity
6 pp · Superhero
Captain Marvel [Billy Batson]Sivana (villain)Prof. Jonathan Swope (first appearanceSivana's double)
The Self-Made Hero
4 pp
The Mechanical Man Mystery
6 pp · Superhero
Captain Marvel [Billy Batson]Timmy Tinkle (introduction, a robot)Sterling Morris
Untitled Humor story
0.5 pp · Humor

ComicBooks.com Value

Our Model is In Beta
Raw (Good) $44
CGC 9.2 · 1 in census $1,099
CGC 9.0 none in existence
CGC 8.5 none in existence
CGC 8.0 · 1 in census $426*
CGC 7.5 none in existence
CGC 7.0 · 2 in census $284
Show all 16 grades
CGC 6.5 · 3 in census $238*
CGC 6.0 · 1 in census $206*
CGC 5.5 · 1 in census $173*
CGC 5.0 none in existence
CGC 4.5 none in existence
CGC 4.0 none in existence
CGC 3.5 · 2 in census $109*
CGC 3.0 · 2 in census $98
CGC 2.5 none in existence
CGC 2.0 none in existence
* estimate — limited direct-sales data at this grade
Our model’s value — refined as new sales data arrives · CGC census counts shown where available

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CGC 3.5 $600 1 listing Raw — POOR $49.99 1 listing
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History

The issue was produced at Fawcett during a difficult period for the company: the copyright lawsuit brought by National/DC had been grinding through the courts since 1941, and by 1951 an appeals court ruling had sent the case back for further proceedings, keeping the publisher's future in legal uncertainty. Writer Otto Binder — the primary creative engine of the Captain Marvel titles in their final years, and also a prolific science-fiction author who published prose fiction under the pen name Eando Binder — scripted the King Kull lead story as well as the issue's Jon Jarl text feature. The pencil art on the King Kull story is credited to C. C. Beck, the character's co-creator and the series' defining visual architect, with inks attributed (with some uncertainty in database records) to Pete Costanza, Beck's longtime studio collaborator.

Trivia · 8 facts

  • First appearance and origin of King Kull, the Submen ruler — created by writer Otto Binder and artist C. C. Beck — in the nine-page lead story 'Captain Marvel and the Return of the Ancient Villain.'
  • King Kull is established as the last survivor of the Submen (also called Beast-Men), a brutish but technologically advanced pre-human race overthrown by early humanity tens of thousands of years ago, who survived into the 20th century via suspended animation.
  • Cover-dated October 1951, published by Fawcett Publications; part of the Captain Marvel Adventures series (1941–1953) that ran 150 issues.
  • The issue also contains the first appearance of Prof. Jonathan Swope (Sivana's double), featured in the story 'The Dilemma of the Double Identity,' scripted and drawn by Otto Binder and C. C. Beck.
  • A second supporting story, 'The Mechanical Man Mystery,' introduces Timmy Tinkle, a robot character employed by Sterling Morris, also scripted by Otto Binder with art by C. C. Beck.
  • The issue includes a Jon Jarl prose text story ('The Ice World') by Otto Binder, writing under his science-fiction pen name Eando Binder — a recurring anthology feature of the series.
  • King Kull was revived by DC Comics in the 1970s after DC acquired the Fawcett properties, most notably serving as the arch-villain of the three-part JLA/JSA/Squadron of Justice crossover in Justice League of America #135–137 (1976), one of DC's most elaborate annual team-up events.
  • King Kull has subsequently appeared across multiple DC continuities — including the Monster Society of Evil, Billy Batson and the Magic of Shazam!, and DC Rebirth — and inspired the animated character Kru'll the Eternal in Batman: The Brave and the Bold, voiced by Michael Dorn.

Full credits

artist C. C. Beck
cover pencils, inks C. C. Beck

Reprints

Reprinted in Shazam from the Forties to the Seventies #[nn] (1977), Captain Marvel Adventures #60, Captain Marvel Adventures #71

Key issues in Captain Marvel Adventures

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