Now, the breakthrough Aussie star is set to land herself a lot more roles in Hollywood.
But this one is probably the most exciting.
Her name is apparently on top of the list to play the iconic superhero, BATGIRL!
The film is set to be released in 2019, directed by Joss Whedon, and sources online think they've uncovered their interest in Katherine for the lead role.
A Reddit user says they have a friend who creates concept art for the film, based of different women in the running for the role.
“A friend of mine was recently contacted by WB to work on concept art for the upcoming Batgirl film. WB wants to get an actress signed by SDCC so they can make an surprise announcement on stage during their presentation.
"I spoke with him a couple days ago and he said that these are the actresses he was asked to develop concept art for,” user ‘DCEUThrowaway89’ said.
They then added a list of actresses, including Emma Roberts and Bella Thorne along with Katherine, finishing their post with, "He won't tell me why but he believes Langford is currently the frontrunner."
Obviously, this has to be taken with a grain of salt because it's just a Reddit user making these claims, but if they are being legit... this could be career changing for Katherine.
Besides, can you imagine how bada** she would look in a Batgirl outfit?! YAS!