Charlie Hunnam is sharing what went through his head when he agreed to play serial killer Ed Gein — and how he "fell into a full panic" after realizing the decision he made.

The Netflix anthology's co-creator Ian Brennan refutes that the series glamorizes the murders: "I don't think this season is sensational at all. I think it's sensationally good," he told THR.

Charlie Hunnam was initially worried that his new role in 'Monster: The Ed Gein Story' was 'a horrible mistake.'

Ed Gein is generally seen as one of the darkest human beings to ever live. He’s been the inspiration for fictional killers from Norman Bates to Buffalo Bill from The Silence of the Lambs. This fact wasn’t lost on Charlie Hunnam, who says that he thought he may have made a mistake by agreeing to play such a troubled individual. He tells EW …

Charlie Hunnam’s much-talked-about physical transformation for Monster: The Ed Gein Story includes an eye prosthetic that’s raised a lot of questions. Right off the bat, fans of the British star were quick to notice that Hunnam’s left eye looked a little different on the Netflix show.

Charlie Hunnam talks about what he needed to do to get inside the mind of serial killer Ed Gein for Netflix's "Monster: The Ed Gein Story."

Monster: The Ed Gein Story, marks the third installment of the Ryan Murphy -created anthology series. The previous two seasons explored the lives and dark legacies of Jeffrey Dahmer and Lyle and Erik Menendez. Monster: The Ed Gein Story is available to stream on Netflix.

Charlie Hunnam's commitment to playing Ed Gein led to him visiting the infamous murderer's grave after filming 'Monster'

As we see Ed Gein experience over a decade over his life in Monster, Charlie Hunnam is a similar age to his character. The British actor was born on April 10, 1990 and is currently 45 years old. This makes Charlie, 8 years older than Ed at the start of the show and considerably younger than Ed when it ends.

Charlie Hunnam tells PEOPLE how he embodied Ed Gein in the new season of Netflix's 'Monster.' He explains that he tried to understand the murderer better by learning about his trauma and changing his own physical appearance.

Charlie Hunnam is taking his girlfriend's advice when it comes to his career. In an interview with E! News, the actor, 45, revealed what his girlfriend of nearly 20 years, Morgana McNelis, thinks about his dark roles,