The android hero Vision evolved into Mainframe; the chief operating system of an entire planet who controlled everything from climate to planetary stability. Mainframe was the guardian of the shield of Captain America. He also kept a version of his original body on the planet Neptune.
He was responsible for the Simon Williams of Earth-691 being transported away during the final assault on the Martian invaders, a battle that saw the majority of the rest of Earth's heroes die.
- 16 Appearances of Vision (Earth-691)
- Media Vision (Earth-691) was Mentioned in
- 6 Images featuring Vision (Earth-691)
- Quotations by or about Vision (Earth-691)
- Character Gallery: Vision (Earth-691)
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