Brain Drain

Brain Drain is a World War II-era Marvel villain — a disembodied human brain housed in a robotic body — who first clashed with the Invaders, Marvel's team of wartime heroes. His grotesque mechanical form made him a memorably unsettling enemy during the Allied superheroes' battles against Axis-linked threats.

Born from the Bronze Age imaginations of Roy Thomas and Frank Robbins in The Invaders #2 (1975), Brain Drain is one of Marvel's more fascinatingly offbeat figures — a character whose debut placed him alongside wartime adventure and who has somehow threaded his way through fifty years of Marvel history. That's a remarkable longevity for a character with a relatively modest footprint, turning up everywhere from Giant-Size Invaders to the delightfully anarchic pages of The Unbeatable Squirrel Girl and, most recently, One World Under Doom — sharing panels with icons like Captain America, Iron Man, and Victor Von Doom along the way. If you love the weird, enduring corners of the Marvel Universe — the characters who quietly persist across eras, popping up in wildly different contexts — Brain Drain is exactly the kind of deep-cut discovery that makes comics collecting so rewarding.