Emma Silverfox is a supporting character from 2009 film X-Men Origins: Wolverine.
X-Men Origins: Wolverine
Emma Silverfox is a mutant who can transform her body into diamond, bullet proof skin. She was one of the captured mutants held by William Stryker at Three Mile Island whose goal was to combine mutant abilities. She is also the younger sister of Kayla Silverfox.
X-Men: Days of Future Past
Due to Wolverine traveling back in time to January 1973, and preventing Bolivar Trask from being assassinated by Mystique, and changing the significant events after that point, she never became affiliated with Stryker, her sister, Emma, was never taken as his prisoner, and she didn't die during the events on Three Mile Island.
- Emma Frost at the X-Men Movies wiki
- Emma Frost's possible villainous counterpart at the Villains wiki