Ever wondered which fictional occupations you'd want to avoid at all costs? From the grim darkness of Space Marines facing endless cosmic horrors to the freezing misery of the Night's Watch standing guard against supernatural threats, some jobs in fiction are truly nightmarish. This ranking explores the worst career paths across sci-fi, fantasy, and horror universes—where your job description might include "probable death," "constant trauma," or "eternal servitude." Whether you're a disposable security guard in a horror scenario, a genetically-modified super soldier in perpetual war, or a Spartan facing impossible odds, these positions redefine workplace hazards. Discover which fictional jobs would make even the worst real-world Monday seem like paradise.