The actor, who plays Draco Malfoy in the wizarding series, revealed that he would love to pursue his character's storyline further if given the opportunity by Harry Potter author JK Rowling.
Felton told New York Magazine: "I'm still riding the wave of it, but it's definitely bittersweet. The beauty of it is, I don't think this is really the ending. It's going to continue in some way, even if I'm not clued in to what that is.
"I haven't had the opportunity to pick Jo Rowling's brain about that yet. But I love the prospect of going into more depth with the characters, if she's planning to share additional stories."
Deathly Hallows director David Yates and producer David Heyman recently insisted that Rowling is finished with the Harry Potter series and dismissed rumours that a prequel would be released.
Rowling herself also confirmed that she has no plans to pen more books in the series, and would instead allow the franchise to live on through Pottermore, a new interactive website for fans.
Felton handed out pizza to waiting Harry Potter fans in New York City before the premiere of Harry Potter and the Deathly Hallows: Part 2 earlier this week.
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Watch Digital Spy ask the Harry Potter stars what is the secret to the boy wizard's success below: