Elizabeth Olsen says Scarlet Witch was supposed to kill more characters in 'Doctor Strange in the Multiverse of Madness'

• Warning: There are major spoilers ahead for "Doctor Strange in the Multiverse of Madness."
• Elizabeth Olsen spoke to Variety about her character's villainous turn in the Marvel movie. 
• Olsen said that Scarlet Witch was "supposed to kill more" people and she "had a hard time with it."

"Doctor Strange in the Multiverse of Madness" star Elizabeth Olsen said that her character, Wanda Maximoff/Scarlet Witch, was "supposed to kill more" in the latest Marvel film. 

"I had a hard time with it," Olsen said in a new interview with Variety. "I was like, these are human beings and Wanda is OK with ending their lives?"

The actress continued: "But I just had to buckle down and think all these people are in her way and she's warned Doctor Strange not to get in her way. And he did. He didn't listen. And so I just had to go from that point of view."

Olsen didn't specify if the additional murders would have involved already existing characters in the MCU or different ones that were ultimately nixed from the film. 

"Multiverse of Madness," directed by Sam Raimi, is Marvel's first foray into the horror genre. Much of the most-gruesome moments occur at the hands of Wanda.

In the movie, Olsen's character becomes corrupted by the Darkhold and goes from a superhero to a villain.

Wanda makes 14-year-old multiversal traveler America Chavez (Xochitl Gomez) her target, with the intention of stealing the girl's power so she can travel to a universe where her sons Billy and Tommy, first introduced in "WandaVision," actually exist.

Because Benedict Cumberbatch's Doctor Strange refuses to let Wanda get America, the witch chooses a ruthless route. After attacking Kamar-Taj, the home and training location for sorcerers, she goes on a murder spree in her relentless attempt to capture America. 

In the film's second act, Wanda inhabits the body of her variant on Earth-838 and encounters the Illuminati, a powerful group created to protect their world from the biggest threats.

The Illuminati is comprised of Charles Xavier/Professor X (Patrick Stewart), Karl Mordo (Chiwetel Ejiofor), Fantastic Four leader Reed Richards (John Krasinski), Maria Rambeau/ Captain Marvel (Lashana Lynch), Peggy Carter/Captain Carter (Hayley Atwell), and Black Bolt (Anson Mount).

Wanda mercilessly kills all of them except Mordo in succession, using brutal methods. 

By the end of the movie, Wanda realizes how villainous she's become and destroys Wundagore Mountain, the origin of the Darkhold.

Her fate is left unclear, but Olsen told Variety that she's "making the assumption" that Marvel will bring her back. 

"I don't know to what capacity, but I hope I'm back," she told the publication. "I hope there's also more fun to be had in something different."