The Chatamborough Family
Mr. Cameron "Chip" Chatamborough Jr.   (our hero)
Mr. Cameron Chatamborough, Sr.   (Chip's widower father) *
Miss Sylvia Starewell   (Chip's Aunt, and his dead mother's twin sister)**
Edgar Solomon Popov   (the family's only butler)

The Claypoole Family
Miss Elizabeth "Bitsy" Claypoole  (Chip's fiancé, a high society socialite)
Senator Payton Claypoole (Bitsy's coal tycoon father)
Mrs. Amber-Rose Claypoole (his socialite wife)

The Mojeaux Family
Mrs. Diabolique Mojeaux   (a clairvoyant widow)
Miss Madeline Mojeaux   (her beautiful young daughter)

The Netherworld Folk
(all these roles are portrayed by the above ensemble)
Restless Spirits   (Company girls)
Skeletons   (Company boys)
Mortatus   (Ruler of the Netherworld)
* Played by the same actor as Cameron, Sr.
Annabel Starewell Chatamborough  (Chip's dead mother)
** Played by the same actress as Aunt Sylvia