Joshua Cassara Death, Obituary: United States, Acclaimed Marvel Comic Book Artist Dies Following Heart Complications

The comic book industry is mourning the death of Joshua Cassara, a respected Marvel artist whose detailed artwork became closely associated with the X-Men during the Krakoa era.

Cassara died on September 22, 2026, at age 46. His wife, Martha, announced the news through social media and said the cause of death was heart complications. She remembered him as a loving husband, father, friend, and creative partner.

In her tribute, Martha asked fans and colleagues to remember Cassara through the happiness he brought to others. She encouraged people to share memories of his art, friendship, humor, and kindness rather than focusing solely on grief.

Cassara built a notable career in comics before becoming closely associated with Marvel. His early work included projects published by Titan Comics, including The Troop, Doctor Who, and Dark Souls. He also worked on Mycroft Holmes and the Apocalypse Handbook, a project co-written by Kareem Abdul-Jabbar.

He made his Marvel debut in New Avengers #7 in 2016. His later credits included Falcon, Sentry, Venom, and Marvel Comics #1000. His career reached a major stage in 2019 when he became a prominent artist on X-Force during Marvel’s Krakoa-era X-Men line.

Cassara also worked on X Lives of Wolverine and the main X-Men series. His collaborations with writer Benjamin Percy continued with the Deadpool/Wolverine series released in 2025.

Marvel selected Cassara as one of its Stormbreakers in 2020, a program highlighting emerging artistic talent. The company later paid tribute to him, describing him as a gifted artist whose work brought energy, detail, and emotion to X-Force, X-Men, and other Marvel titles.

Writer Benjamin Percy, one of Cassara’s closest creative collaborators, also shared memories of their friendship and professional partnership. Percy highlighted their work together on X-Force and the creation of the Green Lagoon, a distinctive location within the Krakoa-era X-Men stories.

Cassara is survived by his wife, Martha, and their children. Funeral and memorial arrangements have not been publicly detailed in the reports reviewed.

His death marks a significant loss for Marvel readers and the wider comic book community. His work across X-Force, X-Men, Wolverine, Deadpool, and other titles remains part of his professional legacy.