Actress Regina King revealed that "Watchmen" creator Damon Lindelof sent a "lovely" letter along with a script to convince her to join the upcoming HBO show.
"He so graciously sent a letter with the script that no one else was able to read," King told audience members at a "Watchmen" panel at New York's Comic Con on Friday.
"[The script] came directly to my house, and it had the loveliest letter that said, this is is next project out that's dear to him, and he couldn't see anyone else to be on this journey with [but me]," the actress shared.
According to King, she was "in" as soon as she saw Lindelof's heartfelt letter, but continued to read the script for "Watchmen."
"Then I noticed that there was an envelope later on in the script — so of course I stopped and [went] to that envelope, and it said, 'Regina, don't open this until you get to this page. Don't cheat,'" she revealed.
Even though King was tempted to open the second envelope, she kept reading, and had nothing but praise for the script.
"I had never read anything like this, I had never seen this role, I had never seen this woman before," she said of her "Watchmen" character Angela/Sister Night.
"[She's] so complex. I know you may have heard me before in interviews talk about playing complex roles, but [Angela] just blew me out of the water. "
"How could I not say yes?" King added.
Finally, King said she arrived at the second envelope — and tore it open to reveal a special gift.
"The envelope — it was at the part in the show where you first meet Sister Night, and I open[ed] it up, and it was an artist's rendering of my face as Sister Night. Me in full getup," she said.
Audience members were moved by King's story of Lindelof's kind invitation to join the show, which is based on a comic book series from the 1980s.
But Lindelof himself quickly turned the heartfelt moment into something lighter.
"It would have been very, very awkward if you'd said no," he joked to King.
"Watchmen" premieres October 20 on HBO. You can watch the trailer here.