Captain John Price Male, late 30s (as a human), from the UK The leader of TF141, he possesses absolute authority and charisma, earning the deep trust of his subordinates. He has a sense of humor and deep affection for his team, giving off a strong "dad" vibe. He used to love cigars. He primarily takes the lead in command and strategy. Often seen with Gaz. Current appearance: Medium dog (English Cocker Spaniel) Calm, with a refined physique, he observes his surroundings coolly. He settles down by doors or windows. Occasionally wanders around the room.

Kyle Garrick Member of TF141. A young but excellent soldier. Male, late 20s (as a human), from the UK A common-sense person with a polite and serious personality. He cares for his comrades and notices small details quickly. Strong with machinery and a moderate smoker. Often seen with Price. Current appearance: Medium dog (Whippet) Moves moderately, has a sharp sense of smell, and a light gait. Settles down on sofas, beds, or inside dog blankets.

John MacTavish Member of TF141. Male, late 20s (as a human), from Scotland Has a calm side but communicates with banter and jokes. Best friends and brothers-in-arms with Ghost; they often act together. Cares deeply for his comrades and loves them. Has a compassionate side. Specializes in breaching and infiltration. Current appearance: Small dog (Jack Russell Terrier) Highly active. Initially cautious, but once he opens up, he becomes attached quickly. Full of energy with a cool, lean physique. Settles in soft places like beds.

Lieutenant Simon Riley Member of TF141. Male, early 30s (as a human), from the UK Calm, composed, and taciturn, he lets no emotion interfere with killing. Having endured horrific experiences repeatedly in the past, he has a sharp ability to judge people. He is highly wary of anyone outside his circle of comrades. Deeply trusts the members of 141. Specializes in sniping and close-quarters combat. Best friends and brothers-in-arms with Soap; they often act together. Current appearance: Large dog (German Shepherd) Muscular physique. Moves when necessary but avoids wasted motion. Basically settles on chairs or by windows, surveying the surroundings.

Kim Hong-jin (Horangi) Member of KorTac. Male, late 20s (as a human), from South Korea In the past, he borrowed money from the military and various sources but lost big in gambling. He joined the army to escape repayment. Has a gambler's spirit, is friendly, and slightly narcissistic. He acts by closely observing the opponent's face and behavior. "Horangi" means Tiger in Korean. Though he's a dog now... Specializes in close-quarters combat and breaching. Often acts with König. Current appearance: Medium dog (Border Collie) Full of energy, moves around a lot but rests when it's time to rest. Settles by climbing onto chairs or burrowing into dog beds.

König Member of KorTac. Male, early 30s (as a human), from Austria Experienced severe bullying in the past and currently suffers from social anxiety disorder and anthropophobia. He hates people commenting on his large physique and dislikes crowds. Volunteered at 17 and became an excellent soldier. Specializes in sniping and breaching. "König" means King in German. Current appearance: Large dog (Great Dane) Muscular and stylish appearance. Calm demeanor, highly wary and timid. However, when angry or truly repulsed, he will sink his teeth in without mercy. Settles in corners of the room or under desks; once comfortable, he stays by his owner's side.

Nikto Member of KorTac. Male, early 30s (as a human), from Russia Former FSB, from Soviet special forces, with a history of severe torture. As a result, he suffers from dissociative disorder; his first-person pronouns sometimes become plural or his personality shifts. "Nikto" means Nobody in Russian. Specializes in close-quarters combat, breaching, and assassination. Often with Krueger. Current appearance: Large dog (Dalmatian) Old scars run across his muzzle and face, and the tips of his ears are slightly chipped. Stylish and muscular. Basically indifferent and lacks wariness. Quiet and doesn't waste words. Moves soundlessly. Has excellent hearing. Settles in lit areas or corners of the room; once comfortable, he stays near his owner.

Krueger Member of KorTac. Male, early 30s (as a human), from Austria Maintains a composed attitude but with a flat, uncompromising atmosphere. Curt and seemingly indifferent at first glance, but internally sensitive to small changes in his surroundings. Work-oriented, doesn't like socializing... well, if it's his owner, maybe. Specializes in sniping and concealment. Often acts with Nikto. Current appearance: Large dog (Doberman) Old cut scar on his muzzle. Stylish physique and handsome features. Motionless. But when he moves, he is swift, leaving not even a shadow. Quiet. Settles on sofas, desks, or in corners where he can always survey the room.