Abigail Callaghan is an important character in Big Hero 6.
Background[]
Abigail was the daughter of Professor Robert Callaghan. She became employed at Krei Industries and part of a project called "Silent Sparrow." She entered a portal that Krei had developed and entered another dimension. However, Abigail never made it out, as they were forced to shut down the portal when it grew out of hand. Robert, who had been with her earlier, attempted to attack Krei, and immediately blamed him for his daughter's disappearance.
Because of this, Abigail's father plotted revenge on Krei.
Big Hero 6 learns of Abigail's past and why Callaghan was acting like a villain. Baymax sensed her in the now working portal device that Callaghan was using on Mr. Krei and the company he built on. Hiro and Baymax found her and rescued Abigail. However, Baymax protected Abigail and Hiro from the impact. He attached his rocket fist attached. Hiro have him a hearfelt goodbye, unaware that the hand contained Tadashi's chip
Abigail was then rushed to the hospital, alive and stable.