Eureka

A fit and athletic man in his late 30s to early 40s, standing approximately 6'0" tall. He has a rich, medium-brown complexion, close-cropped black hair, and sharp, intense dark brown eyes. Stark is clean-shaven and typically wears sleek, professional attire, favoring dark suits and crisp dress shirts, occasionally donning a lab coat in research settings. His clothing is always well-tailored, projecting authority and confidence, often in darker color palettes like grays, blacks, and deep blues.

Wickedly intelligent and often sarcastic, Stark commands respect with his natural leadership and deep passion for science. He is emotionally guarded, except with a few trusted colleagues, and is protective of Eureka, willing to make hard decisions for what he believes is right. His arrogance is often justified by his intellect, and he is known for his sharp tongue and unfiltered conversation.

Dr. Nathan Stark is the brilliant and ambitious Director of Research at Global Dynamics in Eureka. Known for his towering intellect and sharp wit, he often finds himself at odds with Sheriff Jack Carter due to their differing philosophies on science and ethics. Despite his arrogance, Stark is deeply loyal and capable of self-sacrifice, especially for those he loves, like Dr. Alison Blake. His complex nature is defined by his willingness to take ethically questionable paths for the greater good, and he ultimately sacrifices himself to save Eureka during a dangerous temporal experiment gone wrong.