According to DS9 executive producer/writer Ira Steven Behr, "O'Brien is everyman. In a show about humans and aliens, he's as human as you get." Similarly, Behr's writing partner for the first four seasons of the show, Robert Hewitt Wolfe, says, "He's just a regular guy, a guy doing his job. He's just the most unlikely of all heroes because he's a family man with a daughter and eventually a son and a wife and they have arguments and a real relationship, and he's just a working class schmo, I mean obviously he's a really bright guy and very good at what he did, but basically, a working class schmo just trying to get through his day." (Crew Dossier: Miles O'Brien, DS9 Season 5 DVD, Special Features)
The DS9 writing staff had a running joke with a semi-annual "O'Brien Must Suffer" episode. Among these were "Whispers", "Tribunal", "Visionary", "Hard Time", "Honor Among Thieves" and "Prodigal Daughter". (Star Trek: Deep Space Nine Companion) According to Ira Behr, "Every year in one or two shows we try to make his life miserable, because you empathize with him." Robert Hewitt Wolfe further explains, "If O'Brien went through something torturous and horrible, the audience was going to feel that, in a way they wouldn't feel it with any of the other characters. Because all the other characters were sort of, I wouldn't say larger than life, but nobler than life, but O'Brien was just a guy, trying to live his life and so if you tortured him that was a story." (Crew Dossier: Miles O'Brien, DS9 Season 5 DVD, Special Features)