Richard Gadd Casts Stuart Campbell, Mitchell Robertson in Half Man
Half man cast Stuart Campbell and Mitchell Robertson as the younger Ruben and Niall after Richard Gadd said the search hinged on finding actors who could resist obvious stereotypes. The six-episode HBO limited series is built around two brothers, and the younger cast now carries the burden of showing where the adults’ fractured lives began.
Gadd’s view of Ruben
Richard Gadd said many actors approached Ruben as if the role required volume and posture, with “A lot of people thought, well, if Ruben’s like the epitome of masculinity, I’m going to have to shout every line, I’m going to puff my chest.” He pushed back on that instinct, saying Ruben is vulnerable in his own way as well, which is why the younger casting had to suggest more than a hard exterior.
Gadd also described the series’ central idea in direct terms: “You take two men that are kind of broken in their adult life and you go back to their childhood in a more unaccepting time as U.K. society, and show all that learned behavior and the kind of repression that they soak up, and the trauma that they experience. And you contextualize the adults and how they’ve got to this point of broken masculinity in the present.” That framing makes the childhood casting more than a cosmetic match; it has to carry the series’ argument about how those adult versions came to be.
Robertson and Campbell
Mitchell Robertson said the first chemistry read with Stuart Campbell settled quickly: “When we did our first chemistry read, we really got on kind of as soon as we met each other. It felt a little more, instead of like building the chemistry, just kind of nurturing it and letting it grow. And the more we got to know each other, the more it kind of just naturally happened.”
Gadd said Campbell and Robertson “They just offered such a window into the soul of the characters,” while Campbell said the darker material in Ruben’s character was already on the page. Those comments point to the series’ real casting test: not whether the actors looked like younger versions of the brothers, but whether they could suggest the internal conflict that the adult story depends on.
Sophie Gardiner on the series
Sophie Gardiner said, “It’s about how what happens in the past impacts upon the present.” That is the line that links the casting choice to the structure of the six-episode HBO limited series, which follows Niall and Ruben from a turbulent adolescence in Scotland into their fractured adult lives.
Gadd had written the first episode of Half Man before he began Baby Reindeer, so this casting phase sits inside a project that was already taking shape before his later breakout reached audiences. With Stuart Campbell playing younger Ruben and Mitchell Robertson playing younger Niall, the series is betting that viewers will read the brothers’ adult behavior through the earlier, less polished versions of them — and that is where the production’s real pressure now lives.