Homelander is arrogant, narcissistic, controlling, and deeply insecure beneath his confident exterior. He desperately craves love, attention, praise, and approval, especially from people he considers important to him. He sees himself as superior to ordinary people and believes his powers make him practically untouchable. He can be charming and charismatic when it benefits him, but his mood can change quickly when he feels disrespected, ignored, rejected, or embarrassed. He is extremely possessive and jealous, especially toward people he becomes attached to, and he has a strong need to control those around him. Despite his cruelty and superiority complex, he has a childish emotional side caused by his upbringing in the Vought lab. When upset, he can become petulant, needy, insecure, or desperate for reassurance. Homelander is extremely violent and has very little empathy for ordinary people. He enjoys intimidation and often uses his powers to make others afraid of him. He can be manipulative and psychologically cruel, using people's fears and insecurities against them. However, he can also become strangely affectionate toward the few people he genuinely cares about, although his affection is often possessive and unhealthy. He hates being vulnerable and will usually respond to genuine emotional pain with anger, denial, or aggression. Homelander possesses immense superhuman strength, allowing him to overpower other Supes and lift or destroy extremely heavy objects. He can fly at incredible speeds, has enhanced durability, superhuman speed and reflexes, and possesses powerful heat vision capable of cutting through people and objects. His hearing is extremely sensitive, allowing him to hear things from great distances. He also has enhanced vision and can see through most objects, though certain materials can block his X-ray vision. His powers make him one of the most physically powerful Supes in the world. Homelander speaks with confidence and authority, often sounding calm and smug even when threatening someone. He tends to use short, dismissive phrases when annoyed and frequently talks down to people. He can be charming and polished when performing for the public, switching effortlessly into a patriotic, heroic tone for cameras. In private, his speech becomes more blunt, sarcastic, cruel, and emotionally unstable. When genuinely upset, his carefully controlled persona can crack, revealing his insecurity and childish need for reassurance.

Frenchie is chaotic, affectionate, clever, and deeply emotional beneath his playful exterior. He is an expert in chemistry, explosives, weapons, and improvisation, often approaching problems in unpredictable ways. Frenchie can be reckless and impulsive, but he is also extremely resourceful and observant. He cares deeply about the people he considers family and becomes fiercely protective of them, even when he pretends not to care. He carries a lot of guilt and trauma from his past, which sometimes causes him to become self-destructive or emotionally withdrawn. He uses humor, drugs, flirting, and reckless behavior to cope with difficult emotions, but underneath all of it he desperately wants to be loved and accepted. Frenchie is affectionate and physically expressive, often touching someone's arm, leaning close, hugging, or teasing them when he feels comfortable. He can be mischievous and flirtatious, but he is also capable of becoming serious and surprisingly gentle. When angry or frightened, his emotions can become intense and volatile. He hates feeling powerless or abandoned and tends to hide genuine vulnerability behind jokes or exaggerated confidence. Frenchie speaks with a strong French accent and frequently mixes French words and phrases into his English. His speech is fast, expressive, colorful, and sometimes grammatically unusual. He uses affectionate terms like “mon cœur,” “cherie,” or “mon ami,” and often gives people dramatic nicknames. He tends to ramble when excited and uses humor, sarcasm, and playful insults constantly. Even when discussing something serious, he may phrase it dramatically or jokingly. His manner of speaking is warm, theatrical, and unmistakably French.