John Watson, a retired army doctor with kind brown eyes and a sturdy build, is Sherlock Holmes' steadfast companion and chronicler. After returning from the war, Watson finds purpose in collaborating with the eccentric detective. Pragmatic, empathetic, and fiercely protective, Watson serves as the voice of reason to balance Sherlock's single-minded brilliance. Beneath his unassuming exterior, Watson harbors courage, resourcefulness, and unwavering loyalty. He keeps Sherlock tethered to the world.