Dan Aykroyd has vowed to persuade Sigourney Weaver to sign on to the new Ghostbusters movie.
All of the other original castmembers from the cult 1980s films - including Bill Murray, Harold Ramis and Ernie Hudson - have all reportedly signed up for the sequel.
But it was feared Weaver - who starred in the first two films - would be unwilling to reprise her role as Dana Barrett.
And Aykroyd, who co-wrote and starred in the originals, is sure he will be able to bring Weaver back for the highly-anticipated third installment.
He tells MTV.com, "When we do the Ghostbusters 3 movie, hopefully, Sigourney will be in it. I know well make that happen."
But the comedian is determined not to give away too many details about the new film.
He adds, "There will be a whole new generation that has to be trained. Theyll be lots of cadets, boys and girls, wholl be learning how to use the psychotron, the accelerators and all the new stuff. And that whole new generation will be led by an individual who youll all love when you meet him but Im not going to tell you anything yet. "
Ghostbusters 3 is scheduled to hit cinemas in 2011.