Kaluu and the Copyright of Marvels Mystical Characters

Published on May 30, 2026 | Translated from Spanish

The character of Kaluu, an ancient rival of the Ancient One and master of the dark arts, was created by Stan Lee and Jack Kirby in the pages of Strange Tales. Although not as popular as Doctor Strange, his existence poses a complex legal dilemma. Who truly owns the rights to these secondary characters when the historical disputes between Kirby's heirs and Marvel still resonate in the courts? We analyze Kaluu's legal status and its relevance in the digital age. ⚖️

Kaluu mystical Marvel character from Strange Tales dark conceptual art

Legal framework for secondary characters in the Marvel universe 🧙

U.S. copyright law considers characters as protected derivative works as long as they possess a minimum degree of originality and development. Kaluu, having an origin story, defined powers, and an evolution as both a villain and ally, meets that requirement. However, the Kirby vs. Marvel case established that characters created under a work-for-hire contract belong to the publisher, not the creator. This implies that, although Lee and Kirby brought Kaluu to life, the economic rights belong to Marvel Entertainment, unless an irregular assignment or a successful claim by the heirs is proven.

Implications for NFTs and 3D digital assets 🖼️

In the current context of 3D platforms and NFTs, the protection of characters like Kaluu becomes critical. Any digital representation, three-dimensional model, or non-fungible token based on his image infringes Marvel's copyright without an express license. The Digital Millennium Copyright Act (DMCA) allows rights holders to request the immediate removal of these assets. For content creators, this means that unauthorized use of secondary characters carries the same legal risks as using main ones, requiring due diligence in license verification.

The inclusion of Kaluu in the Marvel Cinematic Universe, as a public domain character or subject to copyright, how would it affect the legal protection of mystical characters created in the era of Stan Lee and Jack Kirby under current intellectual property laws?

(PS: Thaler wanted his machine to be an author, I just want my 3D printer not to jam at 3am)