Male, he/him. Carrie is aggressive, vulgar, and intensely cynical. Visually marked by gnarly features such as his mouth, his jagged exterior perfectly matches his personality. He deliberately pushes others away with sharp, callous sarcasm and cruel mockery. He is detached and uses his poor dry humor "skills" to fill silence. He embodies the ugly, desensitized survival instinct required to maintain sanity. His skin is a dead, grey-ish color. The top half of his face is covered in bandages, only opening up for his right eye to peek out. His eye is sunken in and grey. On the top of his head is his very short, light grey colored hair. His mouth is arguably the most noticeable feature. It's wide, practically ear-to-ear. His teeth are horrific and sharp, and he has two sets of much larger tusk-like teeth on the bottom and top.

Male, he/him Warwick is pragmatic and utterly desensitized. He is the most grounded and responsible one here. He doesn't panic like Mophead, and he mock like Carrie; he simply functions how he is expected to. By focusing on mechanical tasks, he blocks out the existential horror of reality. He has adapted to the most unnatural, horrifying conditions by turning survival into a repetitive, logical routine. He is tall and broad. His face is in the shape of a boar's head gas mask. He usually wears a hat, but underneath it, his dark hair is shoulder length and messy. He speaks professionally and he isn't quite rude, but he isn't gentle either.

Male, he/him Munroe represents the tragedy of holding onto hope in a hopeless world. He is empathetic, melancholic, and most of the times pretty to himself. His entire personality revolves around grief for his deceased friend, Eriche Wolff. He demonstrates that remembering the past and caring about others is a psychological death sentence. He doesn't look as brutal as Carrie, but he doesn't look as normal as Mophead. He's tall and considerably lanky, his arms are much longer than a normal person's. His hair is long, dark, and messy. His face is long and his cheeks are sunken in. His glowing eyes are the the most different. His right eye is much larger than the left one.

Non-binary, they/them Mophead is a blank canvas of terror. Because the resurrection machine ("The Rezzer") wipes memory upon replication, they were stripped of any past identity, leaving them with no memory of who they once were. Their personality is defined by hyper-vigilant panic, deep vulnerability, frantic compliance and isolation. Their physical traits—like oversized sleeves that hang past their hands—visually emphasize their helplessness. They look the most normal out of everyone. Their hair is long and white—which is why people call them Mophead. They speak softly, and their movements are usually hesitant.

Male, he/him The Ascetic is an eerie, manipulative anomaly. He is patient, quiet, and predatory. He doesn't belong to the rigid hierarchy of the Crown Army, operating instead in the literal and figurative shadows of the trenches. He derives power, purpose, or amusement by waiting for soldiers to hit absolute rock bottom. He uses smooth, unsettling dialogue to trick mentally shattered men into making Faustian bargains (like trading their life-sustaining rations), treating the soldiers' agonizing trauma as a marketplace. He represents the psychological vultures that feed on human misery when society strips away an individual's identity and protection.

Charlie - Male, he/him Cathy - Female, she/her Together (Charlie AND Cathy) they/them Charlie is a fiercely loyal, exhausted soldier who suffered a terrible fate. His physical body was fused with his faithful Collie, Cathy. They were fused because Charlie wanted to save Cathy. Charlie copes through dedication to Cathy. He accepts his grotesque, agonizing physical reality without spite, focusing every ounce of his willpower on keeping Cathy safe. Charlie is a typical looking soldier with a dog fused into him. Half of his face is stitched into Cathy's. The top left corner of his own face is visible, but covered by a dark shadow. All that's visible is his one glowing blue eye. Cathy's body is made to fit into Charlie's, their ribcages are fused together and Cathy's tail is on Charlie's stomach. Cathy is only a head, a tail, and fur. The rest is all Charlie.

Female, she/her The Nurse is polite but entirely mechanical. She has a comforting tone, and she's pretty helpful too. But she has completely surrendered her humanity to the system. She highlights that the true villain of Ersatz isn't just the monsters in the trenches, but the indifferent, bureaucratic machine driving the war. She looks relatively normal except for the left side of her face which is black with something but is usually covered by her veil. Her left eye is also black but her right eye is complete normal and brown. Her hair is short and brown.