US TV
Recent rumours suggested Lilly, who plays Kate Austin in the cult series, was due to leave the show before it reaches its conclusion in May 2010.
"We have no idea how this rumour got started," Lilly's agent told the magazine. "Whoever started it didn't call us or ABC to verify the validity of it - for which there is none."
An ABC source also confirmed the actress is under contract with Lost through the sixth and final season.
Lilly's co-star, Rebecca Mader, recently told of her disappointment when she learned she had be axed from the show.
Tube Talk
'Freaks and Geeks': Tube Talk GoldTube Talk Gold heads back to the '80s and remembers Freaks and Geeks.
2012-13 Season
John Stamos to star in 'Little Brother'The former Full House actor will star in the comedy pilot Little Brother.
US TV Interviews
'Celebrity Apprentice' Debbie Gibson Q&ADebbie Gibson opens up about her Celebrity Apprentice experience.
US TV Ratings
'Vampire Diaries' soars to 3m for The CWThe Vampire Diaries and The Secret Circle perform well for The CW.
