'You' stars and creator share 13 things even superfans may not know about the Netflix series

Grant, who played Sherry Conrad, told Insider she was concerned about having to break down during glass-box scenes because she's struggled with crying on cue.

"When I found out that I was going to have to cry I was like, 'You know what? I am going to hack this, totally in the vein of Sherry and Cary," she said. 

To improve her skills, she did script analysis and practiced mental tricks. 

Van Winkle said he worked closely with a trainer and nutritionist to prepare for his role as Cary. 

He said he put on 10 pounds of muscle while working out five days a week — and he was also able to do some of his own stunts. 

"I built a physicality with Cary that allowed me to play in all of these different fight scenes and these sequences," he told Insider. 

There are multiple times this season where it seems like Cary is going to die, from the hunting trip and fight with Joe to getting shot by Sherry while in the glass box.

But Van Winkle knew that his character would survive to the end of the season because executive producer Sera Gamble told him ahead of time. 

"Knowing that I lived I think really allowed me to push Cary to further limits ... it just gave me some more freedom," he said. 

Grant was a "You" fan before being cast on the show, so she was excited to be part of the first couple locked in the cage. She also thought it meant she'd get to act out Sherry's death.

"I was all about dying. I was like, 'What's going to be my angle? How do I die?' because I've also never got to die on camera," she said. 

Once Gamble told her Sherry would survive, Grant brought that excitement to Sherry's finale hairstyle instead.

"My gift was bangs. That's how Sherry gets through this — trauma bangs. We're gonna survive and thrive with bangs," she added. 

Love has more physical fight scenes this season than she did on season two, but Pedretti found that they didn't require any intense preparation.

In some cases, she only began preparing with the stunt coordinator the day of the scene. 

"Usually the day of, we would just go over the murder just that day, or if we were working with props, lifting things, digging," she said. "We would just practice the day to make it look as good as possible."

Gamble said that the glass box comes apart to make it easier to fit the cast and a camera into the small space, but Grant still didn't enjoy acting in it.

Grant said her scenes in the glass box where she was trapped with Van Winkle were her "least favorite" part of filming the season.

"I don't like being in tight spaces," she said. "And, God, love Travis, but I also don't love being in tight spaces with other people."

Grant said the filming experience was "super uncomfortable," though she enjoyed seeing how the scenes turned out.

Van Winkle actually enjoyed getting to act in the iconic cage because of the way it heightened the energy of those scenes.

"I loved it, I love being in a confined space because you don't have anywhere to go and so it intensifies things. I feel like everything just gets a little bit brighter in there," he said.

He said he enjoyed filming the scenes with Grant, too, because "she's got a lot of energy and I have a lot of energy and you put that in a small confined space and a lot of fun happened."

Gamble said one storyline that she wishes they would have been able to include would have involved Mr. Mooney.

They scrapped the plot when the actor who played him, Mark Blum, died from complications associated with COVID-19, which Gamble described as a "painful" loss. 

Gamble told Insider that the crew used a real library and a set to create the full look of the Madre Linda Library.

"The exterior of the library's a real place, so just the foyer of the set matches with the front of the real location so that we could seamlessly bring you from one to the other," she said. 

While portraying Love during season two, Pedretti never knew for sure if Love had killed her first husband, James.

"I had a sense that she took part in how he died, but whether or not it was more malicious or on accident was yet to be seen," she said. 

But Pedretti said she does believe that Love hadn't actually intended to kill James.

"I truly do believe that she was being honest when she said it was a bit of an oversight in the measuring of the paralytic," she told Insider. 

Though the pandemic did still happen within the show's universe, it seemingly ends by the time the third season starts.

Gamble said that, despite filming during a spike of COVID-19 cases in Los Angeles, the writers still wanted the show to have the same quality from previous seasons.

She said that they were forced to be "more clever than ever" to achieve this. For example, since they couldn't film large scenes that were supposed to have "a cast of thousands" they had characters arrive early for big events. 

She continued,  "I think there's still exciting scenes that express that like a party is happening but maybe they showed up a little early for the party so everyone's not there yet because that was too many people to have on set that day."

Now that Henry is with Dante, Gamble described the baby as being "someplace better in the short-term," though Joe may want to change that in the future.

"I don't think he can be erased from Joe's heart or Joe's motivations going forward," she said. 

Henry's involvement in future seasons may also depend on what "You" author Caroline Kepnes does in the book series that the show is based on.

"The book and the show are now kind of working in parallel timelines," Gamble told Insider. "The stories are a little bit different now but she has so many thoughts about Joe and a son and children ... I don't think she's totally done exploring that, so, therefore, neither are we."

As for Penn Badgley, he told Insider he'd love to see characters like Paco and Ellie return to the series.