Gil Kenan Director, Screenwriter Paul Rudd Grooberson Actor Carrie Coon Callie Actor Finn Wolfhard Trevor Actor Mckenna Grace Phoebe Actor Kumail Nanjiani Actor Patton Oswalt Actor Celeste O'Connor Lucky Actor Logan Kim 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 James Acaster Actor Emily Alyn Lind Actor Jason Reitman Screenwriter, Producer Jason Blumenfeld Producer JoAnn Perritano Executive Producer Amie Karp Executive Producer Eric Reich Executive Producer Erica Mills Executive Producer Eric Steelberg Cinematographer Nathan Orloff Film Editor Shane Reid Film Editor