• Rachel McAdams will star alongside Benedict Cumberbatch in Scott Derrickson's "Doctor Strange."

Rachel McAdams will star alongside Benedict Cumberbatch in Scott Derrickson's "Doctor Strange." (Photo : Twitter/@AmericanIsland_)

Scott Derrickson's "Doctor Strange" is finally getting its lead female character.

According to The Wrap, "Sherlock Holmes" actress Rachel McAdams confirmed at the Toronto International Film Festival that she will star in Derrickson's "Doctor Strange." McAdams' name has been attached to the film for weeks and she also confirmed that she had some negotiations with Marvel Studios back in July.

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While the nature of her role is still unknown at this point, McAdams is rumored to play Clea in Derrickson's film. Clea is Doctor Strange's most remarkable love interest in the comic book and is linked to the superhero's most dominant villains. Aside from Clea, McAdams could also play a totally new character set for Marvel's Cinematic Universe, as per Cinema Blend.

Marvel Studios Head Kevin Feige previously revealed that Derrickson's "Doctor Strange" will expand the boundaries of Marvel's Cinematic Universe, along with Peyton Reed's "Ant-Man" and James Gunn's "Guardians of the Galaxy." Among Marvel's films, "Doctor Strange" is will introduce magical realms, such as the Astral Plane.

McAdams is known for her roles in various films and television shows, such as Mark Water's comedy film "Mean Girls," Guy Ritchie's action-crime "Sherlock Holmes," Woody Allen's romance-comedy "Midnight in Paris," and Richard Curtis' romance drama "About Time."

Aside from being up for a role in "Doctor Strange," McAdams is also reported to appear in Arthur Conan Doyle and Drew Pearce's action-thriller "Sherlock Holmes 3" and in Tom McCarthy's thriller "Spotlight."

Meanwhile, "Doctor Strange" will showcase an origin story of Doctor Stephen Strange, a neurosurgeon who loses his hands' fine motor skills after an accident. He meets the Ancient One, a master of magic who trains him to become the Sorcerer Supreme and defend the world from evil.

Benedict Cumberbatch will play Marvel's Sorcerer Supreme. Along with him, the film stars Rachel McAdams, Tilda Swinton, Mads Mikkelsen, and Chiwetel Ejiofor.

Derrickson's "Doctor Strange" is slated to premiere in theaters in the United States on Nov. 4, 2016.