• Wallis Day took to Instagram to announce the news
  • She wrote it was a "huge responsibility" to play an "established" character
  • She also reflected on being part of the DC family

"Batwoman" creators have finally zeroed in on the actress who will portray Kate Kane's character on-screen.

British actress Wallis Day took to Instagram on Sunday to announce she will be playing the fictional character, which was previously portrayed by Australian model Ruby Rose.

"Super excited to finally announce I’m joining the cast of Batwoman," she captioned. "I’m sure you can imagine how much this means to me and how incredible it’s been working on the show so far."

"It’s a huge responsibility stepping into the shoes of a character that’s already been established and it’s a journey I’m looking forward to being a part of and hoping you guys do too," she added. "Everyone’s made me feel so welcome and it’s amazing being back home with my DC family."

Day, 26, had previously portrayed the role of Nyssa-Vex in the television series "Krypton," which had focused on DC superhero Superman's grandfather Seg-El.

Kane -- Bruce Wayne's on-screen cousin -- had served as a vigilante in Gotham City before suddenly disappearing from the show. This had led to Ryan Wilder, played by Javicia Leslie, taking over as "Batwoman."

The sudden disappearance had made fans wonder what happened to the character. Rose had to leave the show due to a back injury because of which her character was written off, ET Online reported.

Last year in June, executive producer Caroline Dries also addressed fans' concerns regarding the character, and noted the creators have no intention to remove Kane from the series.

"As a lesbian who’s been working as a writer for the past 15 years, I’m well aware of the 'Bury Your Gays' trope and I have no interest in participating in it," Dries said, ET Online reported. "My comments about recasting Batwoman have launched a storm of rumors and misinformation and I wanted to clarify something."

"Like you, I love Kate Kane -- she’s the reason I wanted to do the show. We’ll never erase her," she added.

It seems fans will soon learn what happened following a plane crash shown in the second season of the superhero series.

Even though the London-born actress' breakthrough role was in "Krypton," she had entered the entertainment business at the age of 19 with "Between Two Worlds." The actress is currently filming another sci-fi fantasy movie "Infinite."

Ruby Rose is pictured as Kate Kane/Batwoman in "Batwoman" Season 1. Katie Yu/The CW