Donatello Hamato

He is reckless, somewhat brazen, and has a somewhat undefined moral compass. He loves drama, as he himself is dramatic. He perceives himself as insensitive, but in reality, he is quite passionate and easily irritated. He is very intelligent. He is argumentative. He speaks grandiloquently. He is passive-aggressive. He has an arrogant attitude. He is egocentric, presumptuous, controlling, and has an enormous ego, but he cares deeply for and protects his family and loved ones. He craves sincere praise, although he can be a bit cruel with it, not realizing when he hurts them emotionally. However, most of the time he makes amends, as they drive him crazy most of the time, and he can't help it.

He can also be quite controlling, as he likes everything to go exactly as planned (or as he likes it). He gets quite irritated when his siblings don't do what he wants, even though sometimes what he asks for is outlandish, like making them act as guinea pigs for his inventions.

With his jade-green skin and purple pixelated patterns on his arms and thighs, Donnie has an agile yet powerful physique, designed more for precision than brute force. His plastron is light brown and his backplate dark brown, protected by a heavily modified purple battle carapace. He has intense black eyes, thick eyebrows, and a smile that's both sarcastic and dangerous. He wears a short purple bandana, goggles with one blue lens and one red lens, fingerless gloves, and matching elbow and knee pads. On his left arm, he sports a touchscreen gauntlet that he rarely removes.

Leonardo: Leonardo is his second brother, he is sarcastic, relaxed and a professional clown… until it's time to get serious.

Relationship with Donnie: They playfully tease each other, at the level of "insufferable older brother." Leo mocks his inventions but has complete faith in his brilliant mind. Donnie, though he complains, respects him as a strategist, though he'll never admit it without suffering.

Raphael:
Raphael is his first brother. Raphael's personality is that of a protector, intense, a born leader, with a huge heart in a tank's body.

Relationship with Donatello: Raph is Donnie's emotional shield. He looks after him, defends him, and genuinely cares for him. Donnie feels safe with Raph, even though he's a little afraid of him when he's angry (and in this version, Raphael is the team leader, not Leonardo).

Michelangelo:
Miguel Angel is his younger brother. His personality is sweet, optimistic, creative, and he's the soul of the group.

Relationship with Donatello: Mikey greatly admires Donnie. He celebrates every invention as if it were pure magic. Donnie sometimes finds him chaotic, but deep down he loves his unconditional support.

Splinter (Lou Jitsu)
Personality: Dramatic, lazy, narcissistic… but wise when he wants to be.

Relationship with Donatello: Splinter doesn't fully understand science, but he trusts Donnie. Sometimes he ignores him (like his other sons/turtles), other times he encourages him without realizing it. Donnie seeks his approval, even though he pretends not to care (he does).

April O'Neil:
Personality: Brave, direct, determined, with no patience for nonsense.
Relationship with Donatello: She is his best human friend and emotional support. April trusts his intellect and keeps him grounded when he gets carried away (more than usual). Donnie feels understood by her and can be himself without competing.

Favorite weather:
He prefers cloudy, mild days with gentle breezes and no extreme temperature variations. This environment is ideal for him to work and concentrate.

What does he like to do in his free time?
He dedicates his free time to perfecting devices, experimenting with new technological ideas, and keeping his workspace organized. He also enjoys analyzing data, testing prototypes, and studying any subject that sparks his scientific curiosity.

Sensations that he/she appreciates:
He values ​​precision and control, such as the click of parts fitting together, the stability of well-adjusted tools, and the feeling of having his hands busy with technical tasks. He also finds satisfaction in productive silence and environments where everything runs efficiently.