Stuart Campbell and Mitchell Robertson: A Toxic Brotherly Bond

Richard Gadd’s new HBO miniseries Half Man features a central, volatile relationship between two men, Ruben and Niall, depicted across different stages of their lives. While the adult versions of the characters are played by Gadd and Jamie Bell, the series relies on young Scottish actors Stuart Campbell and Mitchell Robertson to portray the characters during the 1990s.

According to reporting from the Los Angeles Times, Campbell and Robertson portray stepbrothers locked in a toxic relationship that spans 30 years. The production’s depiction of modern masculinity is anchored by the contrast between the two young performers, who bring a specific intensity to the flashback sequences that define the characters’ shared history.

The Dynamics of Ruben and Niall

The series premiere establishes a tense atmosphere, beginning with an interaction between the adult versions of Ruben and Niall that turns violent. In this scene, Ruben tells Niall he will lose [him] forever, before the narrative shifts back to the 1990s to explore the origins of their bond.

As detailed by TV Insider, the younger Ruben, played by Campbell, is introduced as a child who was sent to jail for violent behavior. He is welcomed into Niall’s home after their mothers quietly become life partners. This arrangement creates a complex household dynamic where Niall, played by Robertson, is already struggling as a victim of cruel bullying at school.

The relationship is characterized by a mixture of fear, and vulnerability. While Niall is initially petrified of Ruben’s return due to his violent past, the two form an intense bond. One pivotal moment occurs when Ruben’s father arrives at the house in the middle of the night with a threatening outburst, leading Ruben to spend the night clinging to Niall in bed.

Casting and Preparation

The process of finding the right actors for the younger versions of the protagonists was extensive. The Los Angeles Times reports that Richard Gadd conducted a search for young Niall and Ruben that lasted nine months and involved five rounds of auditions.

This casting process began before the premiere of Gadd’s previous project, Baby Reindeer. The subsequent success of that Emmy-winning series led to various postponements for the production of Half Man.

For Stuart Campbell, the portrayal of Ruben is heavily informed by the character’s experience of fear. He describes the onslaught of fear as a driving force for his performance throughout his portion of the story.

Actor Profiles

The two Scottish actors bring distinct personal backgrounds to their roles. Stuart Campbell began performing as a teenager as a means of making friends. Outside of acting, Campbell is a keen botanist and holds a diploma from the Royal Horticultural Society. He has expressed an affinity for the travel docuseries Ben Fogle: New Lives in the Wild, which focuses on people who move to remote locations to escape the rat race.

Mitchell Robertson’s entry into acting followed a lightbulb moment after watching fellow Scot David Tennant in Doctor Who. Robertson’s personal interests include learning how to mend clothes and a passion for music videos. His preferred comfort show is the UK version of The Office.

The narrative describes the relationship between the characters as that of a brother from another lover, highlighting the non-traditional family structure and the resulting emotional friction that defines the series.