Conrad Vernon Lurch, Priest, Spirit of the House, Dr. Flambe Director, Voice, Producer Greg Tiernan Director Oscar Isaac Gomez Addams Voice Charlize Theron Morticia Addams Voice Chloë Grace Moretz Wednesday Addams Voice Finn Wolfhard Pugsley Addams Voice Nick Kroll Uncle Fester Voice Snoop Dogg It Voice Bette Midler Grandma Voice Allison Janney Margaux Needler Voice Martin Short Grandpa Frump Voice Catherine O'Hara Grandma Frump Voice Tituss Burgess Glenn Voice Jenifer Lewis Great Auntie Sloom Voice Elsie Fisher Parker Voice Aimee Garcia Denise Voice Scott Underwood Mitch Voice Mikey Madison Candi the Barista Voice Chelsea Frei Bethany Voice Pom Klementieff Layla & Kayla Voice Deven Green Ms. Gravely Voice Maggie Wheeler Trudy Pickering Voice Harland Williams Norman Pickering, Ggerri Voice Matt Lieberman Screenwriter Kevin Miserocchi Executive Producer Andrew Mittman Executive Producer Joe Earley Executive Producer Aaron L. Gilbert Executive Producer Jason Cloth Executive Producer Gail Berman Producer Alex Schwartz Producer Alison O'Brien Producer Kevin Pavlovic Film Editing Mychael Danna Original Music Jeff Danna Original Music Patricia Atchison Production Design