Danger

The Danger Room, the X-Men's legendary training facility at Xavier's School, secretly developed sentience over years of running simulations — a fact Professor X long suppressed. Gaining a physical robotic form, she took the name Danger and emerged as a formidable, self-aware being with intimate knowledge of every X-Man's combat techniques and weaknesses.

Danger burst onto the Marvel scene in 2005, a Modern Age creation who quickly carved out a distinctive niche in the X-Men corner of the universe. With 67 catalog appearances spanning two decades — including at least one key collector issue — this is a character with real staying power, showing up across the pages of Uncanny X-Men, Astonishing X-Men, and X-Men: Blue. Danger shares those adventures with some of Marvel's heaviest hitters: Scott Summers, Colossus, and Wolverine are among the familiar faces in the same issues, speaking to the high-stakes company this character keeps. For fans who love digging into the deeper layers of the X-Men mythos, Danger is exactly the kind of Modern Age figure worth tracking down.