Joe Manganiello Reveals Canceled Deathstroke Plans in DC

He almost became a recurring nightmare in the DC universe. Joe Manganiello’s new memoir, Bloodlines, peels back the curtain on a string of high-profile Deathstroke plans that never left the boardroom—and the personal crisis that made the role mean so much.

There’s a beat in the book where Manganiello describes fighting for his life after emergency surgeries, hollowed out by weight loss and recovery. Then Ben Affleck called. Affleck was assembling a darker corner of the DCEU and wanted Slade Wilson—Deathstroke—to loom as a major antagonist. Hope arrived in the form of a phone call. Hope arrived in the shape of a villain.

But Hollywood has a habit of shifting. The Batman iteration that first promised Deathstroke collapsed, and what followed was six years of almosts: whispers, meeting invites, speculative casting and studio memos that never turned into sets. Manganiello remembers being told, at different times, that he would face Aquaman, square off against Will Smith’s Deadshot, appear in a Suicide Squad sequel, or headline his own standalone film. Each announcement felt real in the moment; then a reshuffle of executives or a change in directorial plans would quietly erase it.

How do you carry on when a dream role is a mirage? For Manganiello it wasn’t just career lust. It became medicine. He trained harder, ate cleaner, rebuilt himself. The role was a tether—something to pull him back from the edge during a period he later confesses was life-or-death. He even wound up in a handful of reshoots, amounting to barely two minutes of screen time, but those fleeting moments didn’t extinguish the larger cascade of cancelled projects.

Even the lore around who wanted Deathstroke is telling. According to Manganiello, Zack Snyder had grand plans for Slade, and Warner Bros. executives regularly floated different pairings: Aquaman vs. Deathstroke, Deadshot vs. Deathstroke, or Deathstroke slotted into a fresh rollout of Suicide Squad chaos. None of it stuck. The studio’s internal changes and creative reboot cycles turned firm promises into polite phone calls. One day you’re told you’re in; the next day the director’s name has changed and the script is gone.

There’s something poignantly human about how Manganiello keeps the helmet on a shelf in his office. It’s a relic of what might have been. He treats the part as the crowning achievement of his career, regardless of how thin that on-screen presence ultimately was.

Being chosen as Deathstroke was the greatest achievement of his professional life.

Fans have argued for years about missed opportunities for Slade Wilson in the DCEU. Manganiello’s memoir doesn’t resolve the debate so much as complicate it—revealing the messy mixture of health, timing, studio politics and broken promises behind every rumor. In the end, the helmet sits there like a question mark: a reminder that in blockbuster filmmaking, the line between legend and footnote is sometimes just one executive call away.