Not all of Suicide Squad's lead characters are bad guys. One of the few superheroes in the movie is Katana, a volunteer on the eponymous team. From what we've in the trailers so far, Katana is not only skilled at kicking ass, but also faithful to how she's depicted in the comics, sword and all. However, the movie obviously won't spend all its time peeling back her layers, so actress Karen Fukuhara would like to see Katana's past expanded upon in Suicide Squad 2 or elsewhere.
While talking with Comicbook.com about how much research she did on Katana, as well as history texts about real female samurai, Fukuhara expressed interest in seeing the swordswoman's story elaborated upon either in a Suicide Squad sequel or her own movie. She said:
I'd like to explore where she's from, what kind of training she comes from -- if she gets a stand-alone movie that would be awesome! There's so much story from the point of her husband's death to her story leading up to Suicide Squad -- that's something that I'd love to show on the screen.
Even though Suicide Squad isn't delving deeply into Katana's origins, rest assured, she'll be an important player in the movie. Her main position on the team is to keep Rick Flag safe, whether it's from one of the mystical enemies they're battling or one of the team members looking to cause some trouble. Her sword traps the souls of its victims within. One of those souls is her husband Maseo, who she'll be talking with periodically during the movie. For those not familiar with the comics, not to worry, she didn't kill Maseo. Like Karen Fukuhara said, explaining the circumstances of his death would help the audience understand the heroine better, not to mention how she learned to wield a blade.
While a solo Katana movie seems unlikely (at the moment), there's been talk of making Suicide Squad 2 for months, and if the first movie makes sweeps up at the box office, it's practically guaranteed Warner Bros will greenlight it. Assuming that Katana makes it out of Suicide Squad alive, she could easily be brought back for the sequel, but it doesn't have to be the only movie where she can reappear. In the comics, Katana has been a member of the Justice League, Outsiders and Birds of Prey. While that first team already has a full roster in the DCEU and there's no indication yet the second team will appear, there have been rumors that the Birds could be seen in the Harley Quinn spinoff, so that could be how Katana gets some distance from these supervillains.
You can finally see Katana in action when Suicide Squad finally hits theaters this Friday.