Was Mystique Ever an X Man?

Typically portrayed as a foe of the X-Men, Mystique has been a supervillain, founding her own Brotherhood of Mutants and assassinating several important people involved in mutant affairs; she has been stated to be over 100 years old.

Are Mystique and Professor X siblings?

While the original trilogy left much of the character's backstory shrouded in mystery, X-Men: First Class gave Raven Darkholme a definitive origin story, which saw the mutant as an adopted sibling of Charles Xavier.

Was Mystique a part of Weapon X?

Like in the comics, Sabretooth, Maverick, and X-23 are agents of Weapon X while the program is led by Professor Andre Thorton and Dr. Abraham Cornelius. ... A flashback also shows that Wolverine and Mystique were also part of Weapon X.