Finn Wolfhard (Trevor), Mckenna Grace (Phoebe), Paul Rudd (Gary Grooberson), Carrie Coon (Callie Spengler), Logan Kim (Podcast), Celeste O'Connor (Lucky), Bill Murray (Dr. Peter Venkman) more..., Dan Aykroyd (Dr. Raymond Stantz), Ernie Hudson (Winston Zeddemore), Annie Potts (Janine Melnitz), Sigourney Weaver (Dana Barrett), Bokeem Woodbine (Sheriff Domingo), J.K. Simmons (Ivo Shandor), Josh Gad (Muncher (voice)), Bob Gunton (The Ghost Farmer), Billy Bryk (Zahk), Sydney Mae Diaz (Swayze), Shawn Seward (Skittles), Hannah Duke (Reseda), Paulina Jewel Alexis (Bunny), Marlon Kazadi (Thick Neck), Chiara Petersen (Burner Girl), Danielle Kennedy (Roller Granny), Artoun Nazareth (Rufus), Crystal Roseborough (Crystal), Dusan Rokvic (Landlord), Emma Portner (Spirit of Gozer), Stella Aykroyd (Deputy Medjuck), Kim Faires (Waitress), Shohreh Aghdashloo (Gozer (voice)), Harold Ramis (Dr. Egon Spengler (archive footage)), Olivia Wilde (Gozer the Gozerian (uncredited)), Tracy Letts (Jack (uncredited)), Oliver Cooper (Elton (uncredited)), CJ Collard (Diner Patron (uncredited)), Bud Klasky (Sheriff / Restaurant (uncredited)), Faith Louissaint (Diner Counter Staff (uncredited)), Daniel D'Angelo Sparks (Walmart Customer (uncredited))

Danny Glicker (Costume Design), Ivan Reitman (Producer), Jason Reitman (Writer), Eric Steelberg (Director of Photography), Dana E. Glauberman (Editor), Guy Bews (Stunt Coordinator), Gil Kenan (Writer) more..., Steven Morrow (Sound Mixer), James Isaacson (Props), C.J. Hannis (Cast Driver), Ashley MacMillan (Props), Nathan Orloff (Editor), Dan Aykroyd (Executive Producer), Dan Aykroyd (Original Film Writer), Harold Ramis (Original Film Writer), Gil Kenan (Executive Producer), Michael Beugg (Executive Producer), Aaron L. Gilbert (Executive Producer), Jason Blumenfeld (Executive Producer), Jason Cloth (Executive Producer), Rob Simonsen (Original Music Composer), John Papsidera (Casting), François Audouy (Production Design), Scott Meehan (Art Direction), Tom Reta (Art Direction), Chris Terhune (Sound Designer), Scott Sanders (Sound Designer), Bill Ives (Art Direction), Paul Healy (Set Decoration), Michael Lemon (VFX Artist), Peter Stratford (Set Designer), Perry Robertson (Supervising Sound Editor), Will Files (Supervising Sound Editor), Will Files (Sound Re-Recording Mixer), Mark Paterson (Sound Re-Recording Mixer), Sheena Duggal (Visual Effects Supervisor), Joanne Jacobsen (Makeup Department Head), Joel Tobman (Assistant Art Director), Kevin Zimmerman (Sound Editor), Ed Symon (Set Designer) and others.