Source: The Hollywood Reporter

According to The Hollywood Reporter, 20th Century Fox and Marvel Entertainment have added another lethal component to X-Men 3.

Mei Melancon has joined the cast of the comic book-inspired sequel as the evil mutant assassin Psylocke. Melancon, who appeared in Brett Ratner's "Rush Hour 2," is reteaming with the helmer for the third installment of the superhero franchise.

Word began leaking last week from the Vancouver set that the latest "X-Men" installment would introduce the character Psylocke, who has had several incarnations in the Marvel comic book series and is best known for her fighting and telepathic skills as well as an ability to transport herself and others through shadows.

In the film, she will fight against the X-Men as a member of Magneto's (Ian McKellen) Brotherhood of Mutants.