Kiefer Sutherland insists his character Jack Bauer in TV thriller 24 should die if the show is to have a good ending.

The Hollywood star, who has enjoyed huge success in the series since its launch in 2001, claims he would be willing to kill the character off at a crucial moment, if it is in the best interests of the show.

He says, "I'll be happy to die. In fact, it's important to the show that Jack eventually dies.

"And that he does so when you least expect it.

"I've always said that if there comes a point in the show where to kill Jack is what serves the show best, then so be it, and I think every actor who has been in the show feels the same way about their role."