Jason Reitman Director, Screenwriter Carrie Coon Callie Actor Finn Wolfhard Trevor Actor Mckenna Grace Phoebe Actor Paul Rudd Mr. Grooberson Actor Celeste O'Connor Phoebe's Classmate Actor Bill Murray Dr. Peter Venkman Actor Dan Aykroyd Dr. Raymond Stantz Actor, Executive Producer Ernie Hudson Dr. Winston Zeddemore Actor Annie Potts Janine Melnitz Actor Sigourney Weaver Dana Barrett Actor Bokeem Woodbine Sheriff Domingo Actor Logan Kim Podcast Actor Oliver Cooper Elton Actor Gil Kenan Screenwriter, Executive Producer Ivan Reitman Producer Jason Blumenfeld Executive Producer Michael Beugg Executive Producer Aaron L. Gilbert Executive Producer Jason Cloth Executive Producer Eric Steelberg Cinematographer Dana E. Glauberman Film Editor Nathan Orloff Film Editor Rob Simonsen Original Music Francois Audouy Production Design Bill Ives Art Director Paul Healy Set Decoration Danny Glicker Costume Designer John Papsidera Casting