55 pages 1-hour read

Old Man's War

Fiction | Novel | Adult | Published in 2005

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Character Analysis

Content Warning: This section of the guide includes discussion of death and graphic violence.

John Perry

John is the primary protagonist and point-of-view character in Old Man’s War. At the start of the novel, he turns 75 and joins the Colonial Defense Force (CDF), an army dedicated to colonizing the universe for humans. Just before leaving Earth for the last time, he says goodbye to his wife, Katherine, at her gravesite. The two signed up for the military when they were 65, as is common for humans who want a new chance at life. However, she died a few years before her 75th birthday. John leaves behind his son, Charlie, and his grandson, and spends the last year saying goodbye to his few friends, as he knows that after his military service, he will not be allowed to return to Earth.


One of John’s primary character traits is his practicality. From the moment he leaves his wife’s grave and Earth without much regret, it is clear that he is very pragmatic in his decision-making. For instance, it is rumored that the CDF makes old humans young again to allow them to fight, but no one has ever met a CDF soldier to know if or how it is done. Despite this, John pursues fighting in the CDF, believing that even the chance at a new life is better than dying on Earth of old age. John’s narrative voice reflects his practical nature, as he relays events with limited emotion, recounting even the deaths of his friends as factually as possible.


Because of John’s intelligence and emotional detachment, he is initially portrayed as the ideal soldier. In boot camp, he quickly becomes squad leader and helps his group finish at the top of their platoon. In his first battle, he defeats the Condu by developing a strategy to shoot them with two bullets and sending the information to the rest of his platoon. He is promoted to captain and becomes the first human-born person to join the Ghost Brigade, an elite unit. Throughout, he strictly follows orders and protocol, as when he insists on learning how the Ghost Brigade fights before joining them in combat.


Despite this characterization, John is a dynamic character who slowly changes throughout the novel, learning to question the motives of the CDF and its destruction of alien species. In particular, his experiences of genetic modification lead him to reflect on the nature of humanity, developing the theme of Colonization and the Conflict Between Self and Other. John recognizes that many of the species the CDF targets are at least as similar to humans as the genetically modified soldiers are, causing him to question whether the methods of the CDF are moral. Although he does not openly or directly resist the CDF, his character arc is established for the rest of the series.


One key factor in John’s character development is his relationship with Jane, which helps him learn how to value human connection again. While he loses much of his humanity in the war, meeting Jane lets him recognize the value of love and personal connection, as evidenced by the fact that he risks his life to save her in the final battle on Coral. By the novel’s end, John has a purpose beyond simply fighting for the CDF until he dies. In the final lines, he reflects, “When this life is done, I’ll turn away from it without regret as well, because I know she waits for me, in another, different life” (351). Just as John left Earth to find rebirth and renewal, there is hope at the end of Old Man’s War that he will find new life in Jane.

Jane Sagan

Jane, an important secondary character and love interest, is a genetically modified human whose consciousness was born six years before the novel’s opening, when her mind was created and placed inside the body of John’s wife, Katherine. As a result, she has no memory of life before enlistment in the Ghost Brigade. She is a calculating and precise soldier, moving to a commanding role within the Ghost Brigade because of her military prowess. She is also intelligent, serving in a tactical role and developing the plans of attack for the final battle on Coral. Additionally, she orchestrates a way for John to join the Ghost Brigade by convincing her commanding officer to allow him to serve first as a liaison and then as a member—largely so that she can protect him and remain with him.


Through her relationship with John, Jane changes, learning to value human connection. Because she was born into the military and has no memories outside the war, she is initially cold and distant, throwing John across the room during their first meeting when he tries to talk to her. However, when John sends her a picture of him and Katherine on their wedding day, she begins to question what it means to be human. She pursues a friendship with John, asking him questions each night to learn more about Katherine and John’s life on Earth. When John proposes that they retire from the military together, she initially resists, but in the novel’s final pages, she sends John a postcard of the place she envisions retiring, revealing to John that she wants to “learn how to be human for the first time” (351). This moment marks her character growth, as she is now dedicated to exploring personal connection and the nature of humanity.

Harry Wilson

Harry is a supporting character and friend to John. On Earth, he was a physics teacher. Like John, he joins the CDF at the age of 75 for the chance at a new life; he is also intrigued by the Colonial Union’s scientific advancement. He serves largely as a source of exposition for John and the reader, helping to explain the science behind things like the beanstalk and the act of “skipping.”


While John is practical and willing to follow the orders of the CDF because of the opportunity it is giving him, Harry is the first recruit to question the CDF, opening John’s mind to what is happening within the Colonial Union broadly. The first time they meet on the beanstalk, Harry explains its massive cost and the physics behind it, which should theoretically be impossible based on the scientific understanding of humans on Earth. This conversation leads John to question the motives and the goals of the CU, which keeps Earth in a state of comparative underdevelopment. Although Harry does not openly defy the CDF, he nonetheless asks questions more boldly and openly than the others. Thanks to John, Harry is ultimately transferred to the CDF research team, where he experiments with the science behind the skip drive tracker. Though no longer participating in combat, Harry thus continues to uphold the very military machine that he questions, raising questions about complicity and The Ethics of War.

Luisa Viveros

Viveros is John’s corporal for his first few battles in the CDF, serving as his direct commanding officer. She is originally from Peru, where her father, Pedro, was president. Her father, mother, and siblings were killed in a military coup, leaving Viveros as the only surviving member of her family. She is tactically intelligent, helping John to survive his first battle when Consu soldiers ambush them.


Viveros serves an important role in John’s development, as she helps John to understand the complexities of the CDF and their motives. She admits to John that she believes the CDF frequently uses violence instead of diplomacy, fighting wars that could be prevented if the CDF were willing to communicate with alien species. Despite this, she explains that she continues to follow orders because she is just one person. Her goal is to “[b]ecome the people who are giving the orders, not just following them” (203). In this way, Viveros humanizes military service for John. They form a friendship based on shared recognition of the brutality of the CDF while also identifying their feelings of helplessness within the military. When she dies, John describes her as a “cog” in the machine, conveying her overall role for the CDF and implying the futility of her belief that she could fundamentally change the military. However, he also makes it clear that he will “miss” her, emphasizing her value as a person rather than her military prowess.

The Consu

The Consu are an alien species that John encounters and one of the primary antagonists in the text. The CDF has little information on the Consu, although it believes them to be significantly more intellectually and scientifically “advanced” than other races. In combat, however, they use technology that is equivalent to that of their enemies, allowing for a fairer fight and leading the CDF to believe that they largely engage in battle for the joy of it. The Consu are large and imposing, each possessing four arms, two of which have blades that they use to engage in hand-to-hand combat.


Like humans, Consu are focused on colonization through war. Although the CDF initially believes that they do so for entertainment, it is ultimately revealed that they do so to “help” other species. Their motivations are religious, as they believe that they can help other species reach their potential and achieve enlightenment, thereby allowing them to die and be reincarnated as perfect beings. They thus provide a point of contrast to the CDF that develops the novel’s critique of colonialism. Both species seek to colonize the universe due to a belief in their own superiority, though the fact that the Consu at least understand themselves to be “uplifting” other species reveals the particularly xenophobic intentions behind human expansionism.

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