Stuart Graham is a South African actor, known for his prolific film career. He is renowned for portraying authoritative characters, often ambiguous or possessing strong moral integrity, in roles ranging from military personnel to police officers or figures of power.

Among his most significant roles are the brutal Koobus Venter in *District 9* (2009), Captain Mynhardt in *Blood Diamond* (2006), and James Gregory in *Mandela: Long Walk to Freedom* (2013). He has also appeared in films such as *The Loft* (2014) and *Serenity* (2019).

His style is characterized by intense and believable performances, which lend depth and realism to his characters, making him a recurring presence in complex dramas and action thrillers.