The Grim Adventures of Billy & Mandy (2027) will be released on August 24, 2027.

Cast

• Kevin Michael Richardson as Grim Reaper / Saliva / Dean Toadblatt / Dr. Fear

• Nicolas Cantu as Billy

• Annaka Fourneret as Mandy

• Terrence Little Gardenhigh as Irwin

• Drew Moerlein as Harold / Fred Fredburger / Gill-man / Barney Rubble

• Candi Milo as Gladys / The Bride of Frankenstein / Grim’s Mom

• Jaiden Klein as Milkshakes

• Juliet Donenfeld as Mindy / Chocolate Sailor #2

• Nolan North as Phil / Jack O'Lantern / Shadow Stranger / Zombie #3 / Fred Flintstone

• Benjamin Valic as Pud'n

• Grey DeLisle as Eleanor Butterbean / Chocolate Sailor #1 / Betty Rubble / Gerome's wife

• Chris Cox as Principal Goodvibes / Harvey

• Diedrich Bader as Hoss Delgado / Boogey Man

• John DiMaggio as Jeff the Spider

• Tom Kenny as Nergal / Nergal Jr. / Nigel Planter / Gerome

• Phil LaMarr as Dracula / Judge Roy Spleen / Lord Moldybutt / Grim’s Dad / Thromnambular / Zombie #1

• Charles Halford as Frankenstein's Monster / Bookworm / Zombie #2

• Jason Spisak as Wolfman

• Vanessa Marshall as Judy / Malaria

• Frank Welker as Scooby-Doo

• Remy Edgerly as Young Norma Jeane’s Stuffed Animal

• No Voice Actor as Zombie Chicken