How Dwayne Johnson Became ‘The Smashing Machine’: The Brow, Eyelid, and Tattoo Secrets (2026)

The transformation of Dwayne Johnson into the iconic MMA fighter Mark Kerr for the biopic 'The Smashing Machine' was an intricate process, pushing the boundaries of prosthetic makeup design. But here's where it gets fascinating: Kazu Hiro, the makeup guru, had to decide between an exact replica of Kerr's appearance or capturing his essence, a subtle art.

Hiro, the two-time Oscar winner, initially crafted two versions of Johnson's makeup, one closely resembling Kerr and another more understated. The latter proved to be the winning choice, allowing for a more nuanced portrayal while reducing the need for extensive prosthetics. However, this decision came with its challenges, as it required multiple stages of makeup to depict the fighter's injuries, including a broken nose and a missing tooth.

What drove Hiro was the fighter's unique blend of physical prowess and emotional depth. He immersed himself in the 2002 documentary about Kerr, captivated by the psychology of ultimate fighters. Hiro was particularly drawn to Kerr's contrasting nature—an aggressive fighter with a gentle, soft-spoken demeanor. Dwayne Johnson's dedication to transforming his body to match Kerr's was also a significant factor.

The real twist? Unlike Hiro's previous transformations, Johnson's role introduced a new challenge: sweat. The fighting scenes demanded constant touch-ups due to the sweat's impact on the makeup, especially around the eyes. Hiro and his team had to experiment with various adhesives to find the perfect combination to withstand the intense conditions. And that's not all; Johnson's tattoos had to be covered, and Kerr's tattoos were added on top, adding another layer of complexity.

The process involved 22 prosthetic pieces and a wig, applied by a team of nearly 20 makeup artists, including Johnson's personal artist. Hiro even had to modify Johnson's brow bone and add a prosthetic eyelid to mimic Kerr's distinctive features. The attention to detail was remarkable, with each fight scene requiring its own unique makeup adjustments.

But the challenges didn't end there. The team faced incidents on set, like Dwayne's nose prosthetic detaching, which required quick repairs. And this is the part most people miss—the art of prosthetic makeup is as much about problem-solving as it is about creativity.

What do you think about the art of prosthetic makeup and its role in transforming actors into iconic characters? Do you think it's an underappreciated craft, or does it get the recognition it deserves?

How Dwayne Johnson Became ‘The Smashing Machine’: The Brow, Eyelid, and Tattoo Secrets (2026)
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