Bella Ramsey believed HBO's hit show The Last of Us would get a renewal, given its immense popularity.
According to BBC, the 19-year-old said, "If people keep watching, I think [a second series] is pretty likely. It's down to the guys at HBO."
"There's nothing confirmed yet, so we'll have to wait and see," she added.
Based on the super-hit PlayStation game, the show has been called "the best video game adaptation ever".
It follows the journey of a man and a teenage girl as they travel through the US during a zombie apocalypse.
Ramsey said, "The Last of Us is essentially about a man called Joel who meets this little, brassy, foul-mouthed kid called Ellie.
"The two of them form an unlikely bond that ends up being stronger than anything else."
The Worst of Witch star started acting as a child, initially in amateur theatre groups.
Ramsey plays the lead role of Ellie with fellow Game of Thrones star Pedro Pascal in the HBO show.
Minka Kelly and Dan Reynolds' romance blossoms following his divorce
Post Malone faces criticism over disparity in Instagram tributes to Beyoncé and Taylor Swift
How Olivia Wilde and Jason Sudeikis are navigating post-split lives
Kato Kaelin recalls Barbara Walters' surprising reaction to not guilty verdict
Madonna's chronic lateness sparks federal lawsuit after two-hour delay at D.C. concert
Rebel Wilson's memoir reveals Wild Night at tech billionaire's party with British Royals