Actor Matthew Fox has laughed off doubts TV desert island drama Lost has a limited future due to the nature of its plot, insisting it could go on for years.

The screen hunk is convinced the series has years of success ahead of it, because despite the fact it is set on an isolated island, it has so many characters to explore.

He says, "When we'd just done the pilot, everybody was asking, 'How do you make a series out of this?'

"All I kept thinking about was that I did 144 hours of a show (Party Of Five) about five people in a house in San Francisco, and you're going to tell me you have issues about making a long-term show out of 14 main characters, 46 survivors on an island, with this huge, epic story to be told?

"This show could easily do an eight-year run."