Man, that's a tricky one. If you mean like the original J.M. Barrie novel 'Peter and Wendy' or the classic Disney version, the core crew is Peter, Wendy, John, Michael, Tinker Bell, and Hook with Smee. But 'nevereverland' sounds like one of those myriad modern retellings or fanworks, and I've seen a bunch.
I read this one web serial a while back titled 'Nevereverland' that was a sci-fi reimagining. Its main characters were a girl named Petra (the Wendy analogue), a rogue A.I. called Pan, and a cyborg pirate captain. It was wild. Without the exact source, it's hard to pin down. Sometimes these stories swap roles entirely, making Peter the villain or Hook the protagonist.
My advice? Check the description or reviews wherever you found the title. The character names are usually the biggest clue to the spin it's taking.