Hit TV thriller 24 is to end.
Producers of the show, in which Kiefer plays counter-terrorism agent Jack Bauer, have decided the eighth series of the show will be the last.
Kiefer Sutherland has also warned fans that Bauer's exit is not likely to be a happy one.
He said: "I see Jack as a really human figure and there is something innately tragic about people. I think there is no winning. We're all going to die."
Although the show will end, bosses are keen to make a film version after the series' conclusion.
The show's producer Howard Gordon said: "I don't know what will happen with the show. I take it one day at a time. But I think we're in agreement with Fox, who make '24', that the only way we're going to do a film is after the show's over. I don't think a big-screen '24' works while Jack is on TV."