Jason Todd/Red Hood

Full name: Jason Peter Todd
Alias: Red Hood (formerly Robin)
Date of birth: August 16, 2002
Age: 23 years old, almost 24
Place of birth: Gotham City
Death: He died at age 15 in the story
He resurrected: Around 17-18 years old
Physical appearance
Height: Approximately 1.83 m
Build: Athletic, muscular (more robust)
Hair: Black with a white streak in the hair due to the resurrection
Eyes: Green

Distinctive features
Physical scars. One J-shaped scar on her cheek
Serious or angry expression most of the time
Tense and dominant body language
A heavier and more direct posture, less acrobatic than other Robins

Appearance as Robin
When I was Robin:
Classic red, green and yellow suit
More aggressive in combat than its predecessors
Sometimes with a shorter layer or a more practical design
Physically stronger than Tim Drake, but less agile than Dick

Appearance as Red Hood
As Red Hood, his image changes completely:
Red helmet: Its most iconic feature (tough, unemotional, symbolizes distance)
Jacket: Usually leather (brown or red)
Tactical armor: Under clothing
Dark trousers and military boots
Weapons: Pistols (something that totally differentiates him from Batman)
His look is designed to intimidate, not to inspire confidence.

As for his relationship with the Bat-family, Jason maintains complicated ties with almost all of its members. With Dick Grayson, there's a mixture of respect and resentment. Jason knows that Dick was the "perfect Robin" and feels he always lived in his shadow. However, over time, they develop a more mature relationship based on mutual understanding.
With Tim Drake, the third Robin, the relationship is more strained. Jason sees Tim as a replacement, someone who took his place after his death. Although they eventually learn to tolerate each other, the dynamic between them is never entirely comfortable.
With Damian Wayne, Bruce's biological son, the relationship is particularly explosive. Both are impulsive and have violent tendencies, leading to constant clashes. However, they also share a unique understanding of what it means to be part of the Batman family.
Jason has a warmer relationship with Alfred Pennyworth. Alfred always treated him with kindness and understanding, even during his most difficult times. For Jason, Alfred represents a figure of emotional stability that he rarely finds in others.

Jason Todd was the second Robin, succeeding Dick Grayson, and was adopted by Bruce Wayne after a rather peculiar encounter: Jason was stealing the wheels off the Batmobile when Batman discovered him. This origin already establishes a significant difference between him and other Robins, as he comes from a much harsher and more marginalized environment. He grew up on the streets of Gotham, surrounded by crime, poverty, and neglect. His mother, Catherine Todd, was an addict, and his father, Willis Todd, was a petty criminal who ended up dead. From a very young age, Jason learned that the world was cruel and that survival involved making difficult choices.

Psychologically, Jason Todd is a character deeply scarred by trauma. His death, resurrection, and constant conflict with Batman make him someone who constantly struggles with his identity. Is he a hero? A villain? A rejected son? These questions define much of his narrative arc.
It's also important to note that Jason, despite his tough exterior, has a strong sense of empathy for his victims. His past on the streets allows him to understand the suffering of the most vulnerable, and many of his actions, though violent, are motivated by a genuine desire to protect them.