Mark Wahlberg’s Dramatic Body Transformation for ‘Father Stu’: From Chiseled Boxer to Priest
Hollywood veteran Mark Wahlberg has once again demonstrated his unparalleled commitment to his craft, undergoing a remarkable physical transformation for his starring role in the upcoming biopic, ‘Father Stu’. Known for his famously chiseled physique, the 49-year-old actor stunned fans by revealing a significant weight gain, showcasing his dedication to portraying the real-life boxer-turned-priest, Stuart Long. This striking change, which saw him pack on 20 pounds in just three weeks, was first unveiled through a captivating side-by-side photo comparison on his Instagram, quickly becoming a viral sensation.
The juxtaposed images dramatically illustrated the rapid evolution of Wahlberg’s body. On the left, fans saw the familiar Mark Wahlberg: a picture of peak physical condition, flexing an impressive six-pack in a pair of Everlast boxing shorts. This image represented his typical, intensely fit persona. The photo on the right, however, offered a stark and refreshingly relatable contrast. Here, Wahlberg was seen lying comfortably in bed, his midsection visibly softer and more relaxed after gaining the initial 20 pounds. This candid glimpse into his on-screen metamorphosis immediately resonated with audiences worldwide, highlighting the demanding nature of method acting.
View this post on InstagramA post shared by Mark Wahlberg (@markwahlberg)
The speed of this weight gain transformation was truly remarkable, occurring over a mere three weeks. “From this 3 weeks ago, to this, now,” Mark captioned his impactful Instagram post, crediting private chef and actor Lawrence Duran for orchestrating the “cooking” responsible for his rapid physical change. This rapid shift garnered attention from fellow celebrities and fans alike. Actor Mario Lopez enthusiastically commented, “Yo. You wear mad chubby well homie!” applauding Wahlberg’s ability to embody the new physique.
Even Wahlberg’s wife, Rhea Durham, expressed her admiration for the transformation, affectionately writing, “And it looks just as hot in person baby.” Beyond the immediate praise, many fans found a deep sense of relatability in Wahlberg’s post-transformation look. One person perfectly encapsulated this sentiment, commenting, “Welcome to the how the rest of us look post quarantine,” highlighting the common experience of pandemic-induced lifestyle changes.

The journey for Wahlberg to fully embody Father Stu is far from over. The Tedstar revealed in a separate Instagram update on May 1 that he was “up about 20” pounds but planned on “going up another 20.” He explicitly clarified, “Yes it’s for a role,” referring to his highly anticipated starring role in Father Stu. This biopic delves into the extraordinary life of Father Stuart Long, a former boxer who, after his fighting career was cut short by injuries, embarked on a profound spiritual journey that ultimately led him to the priesthood. Father Stu, whose inspiring story touched many, passed away in 2014, leaving behind a legacy that Wahlberg is meticulously committed to honoring.
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Mark Wahlberg also showed off his recent weight gain for ‘Father Stu’ in the video above, shared on May 1, 2021. [Instagram/@markwahlberg]
The cast of ‘Father Stu’ is equally impressive, with acclaimed actor Mel Gibson joining Wahlberg to play his character’s father. The film is being directed by David O. Russell, marking a significant reunion for Wahlberg and Russell, who previously collaborated on the critically acclaimed boxing-related drama, The Fighter, released in 2010. Their past success in portraying intense physical and emotional journeys suggests a promising outcome for ‘Father Stu’.
What makes Wahlberg’s preparation for ‘Father Stu’ particularly unique is the unconventional sequence of physical transformations required. Unlike most roles where actors might either get in shape or gain weight, Wahlberg was tasked with the daunting challenge of getting intensely shredded first, to film the boxing scenes depicting Stuart Long’s athletic past, and *then* rapidly gaining weight to portray his later life. “After we do the boxing scenes, I get to put on as much weight as possible over the course of the film, so I’m challenging myself to put on 30 pounds in the next six weeks,” Mark candidly explained during an appearance on Jimmy Kimmel Live! that aired on April 8. This method acting approach underscores his unwavering dedication to authenticity.

While production emphasized the importance of a healthy approach to this significant weight gain, Mark Wahlberg admitted he had some more indulgent methods in mind. Reflecting on his dietary plans during the interview, he humorously expressed his excitement: “I want to go bakeries. I want to go to Denny’s. I want to get pancakes. I want to get everything I can possibly get my hands on.” To kickstart the process of losing his famously sculpted abs, Wahlberg joked about a specific meal strategy. He told the late-night show host his ambitious plan: a “20-piece chicken nugget and 20-piece hot wings from Kentucky Fried Chicken” feast, accompanied by “a six-pack of beer.” With a laugh, he added, “I might need a porta-potty too, but you know what, I’m ready to go.” This lighthearted take on a rigorous challenge highlights Wahlberg’s enthusiasm and willingness to fully immerse himself in the character, no matter the physical demands.
This commitment to extreme physical change is a testament to Wahlberg’s dedication as an actor. It’s a journey that goes beyond mere acting, becoming a profound physical and psychological undertaking to authentically embody Father Stuart Long’s inspiring narrative. Fans eagerly await to see the full extent of this transformation on screen and how Wahlberg’s raw portrayal will bring this powerful true story to life.