Dave Goelz Gonzo (voice) Matt Vogel Kermit / Uncle Deadly (voice) Eric Jacobson Miss Piggy / Fozzie (voice) David Rudman Scooter / Janice / Beaker (voice) Darren Criss The Caretaker Geoff Keighley Uncle Theodore (voice) Craig Robinson Singing Bust (voice) Skai Jackson Singing Bust (voice) Justina Machado Singing Bust (voice) Ed Asner Ghost of Claude Taraji P. Henson The Bride Will Arnett The Host Danny Trejo Ghost of Huet Sasheer Zamata Ghost of Mary John Stamos Self Kim Irvine Haunted Mansion Maid Brian Henson Sal Minella (voice) Yvette Nicole Brown The Driver Alfonso Ribeiro Ghost of Fred Chrissy Metz Ghost of Harriet Jeannie Mai Ghost of Maude