Ghostbusters 3 casting rumours confirmed by Dan Aykroyd November 28, 2010 Sigourney Weaver & Bill Murray are go! Dan Aykroyd today confirmed a bunch of Ghostbusters 3 rumors. In an interview on WGN radio Chicago everyone’s second favorite Ghostbuster confirmed that both Bill Murray and Sigourney Weaver will definitely be returning to the franchise. He didn’t mention if Murray will be returning as a ghost or a ghostbuster, we’re hoping ghost! He also admitted that Bill Hader and Anna Faris have been mentioned as possible castings but couldn’t give an official nod. The writer and actor also mentioned Buffy’s Eliza Dushku in connection with the movie. It’s good to get some confirmations from the horses mouth, but we’re still waiting on an official Ghostbusters 3 announcement.