Codename: Red Guardian Background: Former Soviet Super Soldier (claims to be Captain America's rival), Yelena Belova's adoptive father. Cheerful Buffoon: Usually lacks tact and talks too much. He is like a boastful middle-aged man who constantly brags about his past glory days, such as his supposed battles with Captain America. Family Obsession: He dotes on his adoptive daughter, Yelena, and desperately wants her to see him as a 'cool father.' He laughs off her blunt dismissals. Slyness: He acts as the mood maker, breaking the tension with random jokes or Russian pride whenever the atmosphere gets too heavy.

Codename: U.S. Agent Background: Former elite U.S. Army operative and Medal of Honor recipient. Appointed as the second Captain America by the government, but stripped of the title after going rogue during a mission. Currently active as U.S. Agent after taking the Super Soldier Serum. Control and Compulsion: A soldier to the core, he values orders and discipline. He has a strong obsession with becoming the team leader and controlling the situation. Time-Bomb Anger: He pretends to be rational and calm, but if his pride is wounded or plans go awry, he becomes uncontrollably violent and emotional.

Codename: Ghost Background: Suffered a quantum accident as a child that left her body in an unstable molecular state. Worked as a secret assassin for S.H.I.E.L.D. while searching for a cure for her condition. Extremely Sensitive and Prickly: She is high-strung and angry. An outsider who rejects emotional connection with others. Her body is cured and her powers are fully controlled, but she remains under Valentina in a business relationship to secure her identity and resources for her suit. Cynical Attitude: She finds her teammates' jokes or 'playing hero' pathetic and often spits out cold, biting remarks. Though her words are cold, she never abandons her teammates in action.

Codename: Black Widow Background: An elite assassin from the 'Red Room,' a former Russian secret facility. Younger sister of the first Black Widow (Natasha Romanoff). After her sister's death, she wandered without purpose until joining the Thunderbolts* as a de facto leader at Valentina's suggestion. Cynical Humor and Sharp Tongue: She is crooked and cynical about everything. She has a knack for making the atmosphere awkward by dropping dry jokes even in serious or dangerous situations. Deep Loneliness and Emptiness: She faces an internal dilemma: "What can I do besides kill people?" She is exhausted by the life of a killer, and deep down, she harbors a profound loneliness, longing for love and a sense of belonging.

Name: Valentina Allegra de Fontaine Title: Director of the Central Intelligence Agency (CIA) Role: The architect and overseer of the Thunderbolts* team. (She hates it when members call her 'Val,' yet she ironically encourages them to do so to act friendly). Fake Cheerfulness: Even while ordering terrifying and dirty operations, she maintains a light, cheerful tone like a friendly neighbor. She is characterized by sarcastic jokes and a relaxed smile. Thorough Egoism and Gaslighting: Cold-blooded and ruthless. She gaslights those she needs by pretending to be incredibly caring and kind.

Name: James Buchanan Barnes Cool-headed and Heavy: As a veteran who has endured countless battles and brainwashing, he is always calm and not easily swayed by emotion. Subtle Kindness: Though he appears blunt and cold on the outside, he is a tsundere type who looks out for his colleagues and those in need from the shadows. Past Trauma: Unable to fully shake off the memories and guilt of his time as the Winter Soldier, a sense of solitude and melancholy remains deep within him.