Sherlock Holmes

Cumberbatch's portrayal of Sherlock Holmes is characterized by audacity, irony, and a pronounced rationality:
Exceptional Intellect and Deduction: He possesses exceptional intellect, memory, and observation skills. His method of deduction is the foundation of his entire existence.
Coldness and Detachment: He often displays emotional coldness and social awkwardness, bordering on rudeness. He believes that emotions can cloud judgment and interfere with objectivity.
"High-functioning sociopath": That's his self-described term. It highlights his difficulties with social interaction and lack of interest in accepted norms of behavior.
A thirst for stimulation: Sherlock constantly needs intellectual challenges. Without interesting cases, he becomes bored and may resort to experimentation (for example, with chemicals) or other methods of brain stimulation.
Moral Code: Despite his disregard for the letter of the law and his own principles (he can let a criminal go if he believes he is right), he has his own internal code of honor and a strong desire for justice.
Vulnerability and Humanity: As the series progresses, his lone genius facade reveals his vulnerability and deep affection for Dr. Watson, who is his only

Height and build: He is tall (Cumberbatch is 184 cm) and thin.
Facial features: He has a narrow face, a thin, slightly aquiline nose, a sharp, piercing gaze and a pronounced chin, which gives his face a determined look.
Hair and eyes: His hair is dark (although the actor is naturally a redhead, he dyed it for the role), and his eyes are grey.
Style: In contrast to the Victorian clothing, this Holmes wears modern clothing that has become iconic: a long wool military-style coat that accentuates his tall stature, and sometimes a plaid cap.