Marvel 'X-Force' and 'Stormbreaker' Artist Joshua Cassara Dies at 46

To make a modern X-Men comic work, the artist has to sell the impossible as mundane infrastructure. You cannot just draw people in spandex punching each other; you have to design a functioning, biomechanical mutant nation where telefloronic gateways look as real as a subway turnstile. Joshua Cassara understood that assignment better than almost anyone in contemporary superhero comics. On September 22, 2026, the artist who defined the gritty, organic look of Marvel's Krakoan era died from heart complications at the age of 46.[1][2]

Cassara's death was announced Wednesday by his wife, Martha Cassara, on Instagram. "If you knew Josh, you know that he approached the world with humor, sweetness, and kindness," she wrote. "He would not have wanted your condolences. He would have wanted your laughter and toasts." The news prompted an immediate outpouring of grief and tributes from the comic book industry, where Cassara had built a reputation as both a powerhouse talent and a beloved collaborator.[1][2][3][4]

A self-taught artist who played football and volleyball at California's La Mirada High School before graduating in 1998, Cassara's path to the top of the comic book industry was relatively swift. He broke into the business in 2015 drawing The Troop for Titan Comics, followed by Mycroft Holmes and the Apocalypse Handbook in 2016. That same year, he made his Marvel Comics debut on New Avengers #7, kicking off a decade-long relationship with the publisher that would come to define his career.[1][5]

But it was in 2019, with the launch of the X-Men's "Krakoa era," that Cassara found his signature canvas. Paired with writer Benjamin Percy on X-Force, Cassara was tasked with illustrating the mutant nation's black-ops team. The series required a delicate balance of superhero action, science fiction, and outright body horror. Cassara delivered, rendering bloody, kinetic mayhem with a level of detail that earned him a spot in Marvel's inaugural "Stormbreakers" class of elite artists in 2020.[1][2][4]

Marvel Entertainment released a statement mourning the loss of one of its defining modern voices. "The Marvel team is saddened by the passing of Joshua Cassara," the publisher wrote. "A gifted artist, he brought energy, detail and emotion to his work on X-Force, X-Men, and many more. Beyond the page, Joshua was a wonderful friend and collaborator with a kind heart, and he will be deeply missed."[1][2]

Fellow creators echoed that sentiment, remembering the man behind the drafting table as much as the art on the page. Writer Tini Howard recalled sharing convention couches with Cassara, calling him "Krakoa family," while artist Russell Dauterman praised him as "THE artist of the Krakoa era," noting that Cassara's distinct visual choices—like a massive headdress for the character Havok—would always make him smile. For a medium built on collaboration, Cassara's ability to connect with his peers was as crucial to his success as his linework.[1][3]

His creative partnership with Percy spanned dozens of issues, extending beyond X-Force to include the 2022 crossover X Lives of Wolverine and the 2025 Deadpool/Wolverine series. He also contributed to Gerry Duggan's X-Men run, which concluded with issue #700 in 2024, and provided covers for Marvel's 2023 Planet of the Apes series.[1][4][5]

Martha Cassara closed her announcement with a request that summarized her husband's approach to his life and his audience. "I would love it if you shared something below," she wrote. "Not your sadness, please, but any sort of happiness he brought you through his art, his friendship, or even a brief encounter."[1][2]