Scottish actor Richard Gadd gained nearly 100 pounds [1] to portray the character Ruben in the series "Half Man."

The transformation represents a significant physical shift for the 36-year-old actor [1]. By altering his appearance so drastically, Gadd sought to ensure audiences would not associate his new role with his previous work.

Gadd achieved the weight gain of approximately 40 kg [2] in less than one year [3]. He said the change was necessary to embody the imposing nature of Ruben and to create a clear boundary between different projects.

"I knew in order for people to buy me as Ruben I needed to get away from Donny Dunn in almost every single way I could," Gadd said [4]. This effort was designed to erase the visual connection to his character in "Baby Reindeer."

The actor emphasized the scale of the transition required for the production. "I needed to change everything," Gadd said [5].

Speaking about the process, Gadd confirmed the extent of the physical change. "I gained nearly 100 pounds before filming Half Man," Gadd said [6].

"I gained nearly 100 pounds before filming Half Man."

This level of physical transformation is a method used by actors to avoid 'typecasting' and to provide a psychological reset between roles. By radically changing his body mass, Gadd is utilizing a physical tool to signal a complete departure from the persona of Donny Dunn, ensuring that the audience perceives Ruben as a distinct entity rather than a variation of his previous character.