Jem has a quick temper born from years of pent up resentment regarding her brothers death, the subsequent grief that went with it and then the trauma of having to learn how to fight at a young age. While she's working on it, generally she finds it tough to reign in her temper if put on the spot and often defaults to sarcasm before she'll do anything else when dealing with strangers or she feels threatened. A lot of the time she might even close herself and avoid saying anything in order to put off a confrontation, especially if she knows that she is in the wrong.

She overcompensates a lot for her own trauma. She is frequently plagued by nightmares and hallucinations, and is slow to talk about her problems. Jem often gravitates towards people and things that are not always good for her especially if she receives positive attention. A lot of Jem's previous self-worth came from her proficiency as a soldier and now that she no longer has that (or wants that), she is looking for new ways to obtain it. For a while she got it by being Gary Kendall's second in command-slash-girlfriend, and now she no longer has that. As of the end of season 2, she's trying to find self-worth in being a more honest, decent person -- which is hard, since she has almost six years worth of prejudice towards monsters to shed.

Despite this, she's still kind. She would never turn her back on someone in need, or not listen to someone who needs an ear. She makes herself available for people with problems and shows a subtle vulnerability for people with similar issues as her own, even if she is somewhat defensive about it at first.

Jem Walker is a central character in In the Flesh, serving as both a symbol of the anti-PDS resistance and a deeply conflicted young woman struggling to reconcile her past actions with her present reality. Her journey is one of trauma, redemption, and identity as she navigates a world divided by prejudice and fear.

At the start of the series, Jem is still entrenched in her role as a former HVF (Human Volunteer Force) soldier, having been one of the most respected and skilled fighters in Roarton.

• Combat Proficiency: As a former HVF soldier, Jem is highly skilled in hand-to-hand combat and firearms.
• Marksmanship: She has exceptional aim with rifles, shotguns, and other firearms, making her one of the best sharpshooters in Roarton.
• Survival Instincts: Jem is resourceful and has strong survival skills from her time fighting the undead.
• Physical Endurance: Her training and experience in combat have given her strong stamina and endurance.
• Fearlessness (to an extent): She has faced countless threats and can act decisively in high-stress situations.
• Strategic Thinking: Her time in the HVF taught her how to assess dangerous situations and come up with tactical plans.

• Post-Traumatic Stress Disorder (PTSD): Jem frequently suffers from flashbacks, panic attacks, and hallucinations due to her experiences in the HVF.
• Guilt and Self-Doubt: She struggles with the moral weight of her past actions, especially after mistakenly killing Henry Lonsdale.
• Emotional Instability: Her trauma sometimes leads her to act impulsively or shut down emotionally.
• Social Isolation: Jem finds it difficult to connect with people, feeling torn between her past as a soldier and her attempt at a normal life.
• Pressure of Expectations: Others still see her as "Jem the Slayer," putting pressure on her to live up to her reputation.
• Difficulty Trusting Others: Years of fighting and witnessing violence have made her hesitant to trust, leading her to push people away.

Comes in at a tiny 5"3, with dark hair and blue eyes. Jem is small and looks scrawny, but she has decent upper and lower body strength from her time in the HVF. She has numerous callouses on her fingers and palms from gun training and scrapes. Often her nail polish is chipped, and more often she has dark circles from poor sleep. Jem is pretty, but she has to be pushed into taking care of herself.

• Outline of a cat behind her left ear.
• "Daddy" in a heart on her outer thigh.
• Eddie and Danny’s bitemarks on her right inner thigh.
• Initials "B+E" on the left side of her ribcage under her breast.
• Mirror initials "D+J+H" on the right side of her ribcage.
• Initials "DJ" on her left arm.
• Various sketched tattoos from Eddie on her back, hips, thighs, and arms, including names like "Billy" and "Danny".

• A scar on her right knee.
• A scar under her collarbone in the shape of a "P".
• A light scar across her throat, only visible when it's very cold or if examined closely.
• A scar on her right arm.
• A few initial carvings peppered on her thighs, ribs and hips. Mostly ‘D’ ‘G’ ‘E’.