The 'House Bunny' actress has reportedly been signed up to play one of the new 'Busters' who will take over the spook-catching business when it is re-opened in the third installment of the comedy action movie series.
Hollywood legend Bill Murray, 59 - who played Dr. Peter Venkman in the 1984 and 1989 films - has hinted he would like to be part of the reunion but only as a ghost.
Directed by Ivan Reitman, the much-anticipated movie - the first in the series since its 1989 sequel - is set to go into production in May.
Faris, 34, recently admitted she wanted to do comedy for the rest of her career.
The screen beauty - whose career break was in spoof horror 'Scary Movie' - revealed she has finally decided she is happy to be known for her comic talents.
She said: "I used to be like, 'You know what? I'm going to show this town! I can act! I can cry!'
"Then I thought I kind of don't want to explore those darker parts of my personality. I would do comedy for the rest of my life."