Characters with notable critical thinking skills

When asked this question, the first character that comes to mind is:-

Susan Calvin from the different stories by Isaac Asimov. Despite working in a male dominated industry, Susan has managed to keep her role as the only robopsychologist. Most men she encounters insult her by calling her a robot herself. But her critical thinking skills allows her to solve ethical dilemmas and technical issues among robots and humans alike.

Susan heavily relies on the three laws of robotics and scientific analysis ro demonstrate critical thinking.

On the other hand, we have Cathy Ames as written by John Steinberg.

She uses strategic thinking and manipulative tactics to solve problems and survive.

I am keen to know which characters you would describe as having critical thinking skills and why?