Rachel McAdams may feature as the leading lady in Scott Derrickson’s “Doctor Strange.” Heroic Hollywood reports that the “True Detective” actress has been offered the main female role in the film, citing an unnamed source in Los Angeles.

It is not confirmed that she will be cast, or for what role. But Cinema Blend reports she may play Clea. In the Marvel comics, she is a sorceress and the disciple and lover of Dr. Stephen Strange. She's also the daughter of Umar and niece of demonic tyrant Dormammu. The film is currently in pre-production and soon the filming will begin in London. Benedict Cumberbatch is set to play the title role and his character will live on Bleecker Street in New York.

“The Sanctum is on Bleecker Street, the modern-day Bleecker Street. He (Doctor Strange) will be the strangest thing walking out onto that street,” Marvel President Kevin Feige told Birth Movies Death.

It's expected that the actor will speak with his native British accent, but according to Feige nothing is final yet. “We have not discussed [the accent] with him yet, but he's Benedict Cumberbatch, so I think he can do anything we ask of him. Benedict's been on a bit of a whirlwind tour up until now, but he is so excited. We are as excited to have him as he is to be part of this,” Feige told MTV.

“Doctor Strange” concerns a surgeon who gets a new lease of life after his career is destroyed. He travels to the east and meets a sorcerer who teaches him magic to defend the world against evil. Derrickson is directing from the screenplay by Thomas Dean Donnelly, Joshua Oppenheimer and Jon Spaihts. The movie opens Oct. 28, 2016.