Carrie Coon Callie Spengler Finn Wolfhard Trevor Mckenna Grace Phoebe Paul Rudd Gary Grooberson Logan Kim Podcast Celeste O'Connor Lucky Bill Murray Dr. Peter Venkman Dan Aykroyd Dr. Raymond Stantz Ernie Hudson Winston Zeddemore Annie Potts Janine Melnitz Sigourney Weaver Dana Barrett Bokeem Woodbine Sheriff Domingo Tracy Letts Jack (uncredited) J.K. Simmons Ivo Shandor Josh Gad Muncher (voice) Bob Gunton The Ghost Farmer Billy Bryk Zahk Sydney Mae Diaz Swayze Shawn Seward Skittles Paulina Jewel Alexis Bunny Marlon Kazadi Thick Neck Danielle Kennedy Roller Granny Artoun Nazareth Rufus Dusan Rokvic Landlord