People encountered (or just heard of) by the investigators while travelling in places in the USA outside their home town of Boston Ma.
Alvarez, Escobar - NY Dockhand, ritually murdered by the Cult Of The Bloody Tongue.
Atwright, Miriam - A Harvard research librarian who has in the past aided Elias's researches.
Banda, Julius - NY Tailor, ritually murdered by the Cult Of The Bloody Tongue.
Barlow, Charles - NY Stockbroker, ritually murdered by the Cult Of The Bloody Tongue.
Blackwell, Nigel - English author of Africa's Dark Sects, the book which Elias tried to obtain from Miriam Attwood.
Callaghan, Sgt Richard, NYPD - Former police colleague of Bartholomew Steel. Attended his wedding.
Carlyle, Erica - Sole heir to the Carlyle millions since Roger's death.
Carlyle, Roger - Member of the missing Carlyle Expedition. Now dead in suspicious circumstances..
Chakota, The - Unseen being which lived in a pit in the caverns under Ju-Ju House. Didn't get to eat Pen or David.
Corey, Joe - Erica Carlyle's bodyguard.
Colton, Jack - Farmer who assists Steel after the kidnapping of David and Pen as they returned from the Carlyle estate.
Colton, Mary - Wife of Jack.
Cowles, Professor Anthony - Australian Expert on Polynesian Culture. Currently in the USA on a lecture tour. Large and Ginger haired.
Cowles, Miss Ewa - (pronounced eh-va). Beautiful daughter of Professor Cowles, Native Hawaiian on her mother's side. Met the party in Boston and accompanied them to Hawaii. More here.
Crompton, Montgomery - Early 19th century author of Life As A God, a diary owned by Roger Carlyle and read by David Martlesham.
Darrow, Simon - NY Private Eye ritually murdered by the Cult Of The Bloody Tongue.
Davies, Roger - Revenue agent investigating illicit sales of alcohol at the Blue Heaven Club
De Salle, Veronique - Proprietor of a high class brothel near to Central Park, actually owned by the Macettis. Encountered by David and Chuck during their attempts to recover Leroy Turner from the mob.
Dwyer, Sgt Henry, NYPD - Former police colleague of Bartholomew Steel. Attended his wedding.
Elias, Jackson - Globe trotting writer specialising in exposing death cults and other strange organisations. Friend of David Martlesham and Jonah Kensington. Killed by cultists of the Bloody Tongue at the start of the adventure. More information here.
Emerson, Arthur - Owner and proprietor of Emerson Imports, New York. Ju-Ju House is among his customers.
Fayette, Freddie - Deceased New York resident who returns to life during his own funeral.
"Fifi" - Dancer and current girlfriend of Jack Macetti - apparently she's "French".
Foster, Rev. Anthony - Rector of St George Episcopal Church New York City, was a friend of Elias and officiates at his funeral.
Grey, Bradley - Erica Carlyle's New York City lawyer. A partner in Dunstan, Whittleby and Grey.
Huston, Dr. Robert - Member of the missing Carlyle Expedition.
"Jo-Anne" - Waitress at a New York Diner, recruited by David into his cult.
Kensington, Jonah - Owner and Editor for Prospero Press, a small New York firm. Elias's publisher and friend.
"Lulu" - Dancer and former girlfriend (early 1925) of Jack Macetti
M'Dari, Mukunga - Former leader and high priest of the Cult Of The Bloody Tongue in New York. Shot dead by Chuck.
Macetti, Jack - Nephew of Joe, attended Pen's party in New York.
Macetti, Joseph - New York Mobster and "Businessman".
Mancuso, Peter - New York Accountant murdered at the Blue Heaven Club, then mysteriously returned to "Life".
Masters, Hypatia - Member of the missing Carlyle Expedition. Died at the Mountain Of The Black Wind.
Middleton, Serena - Sister of Charles Barlow.
Mitchell, Mr and Mrs Niles - False names used by David and Pen while visiting the Ju-Ju House undercover, and later at the Pemberton Hotel.
Nelson, Bertram "Nails" - A soldier of fortune who in 1923 reported seeing Jack Brady, years after the massacre. Last seen in Nairobi.
N'Kwane, Silas - Proprietor of Ju-Ju House, New York City. Shot in the leg when the party rescued David and Pen from Ju-Ju House. Now missing.
O'Hanlon, Capt. Thomas, NYPD - Former superior of Bartholomew Steel, and friend of Ryan O'Shaughnessy (Sergeant, Boston PD).
Penhew, Sir Aubrey - Member of the missing Carlyle Expedition. Killed by Chuck on Grey Dragon Island.
Poole, Lt. Martin, NYPD - Investigator of Jackson Elias's murder. He knows that a number of similar murders have taken place over the previous two years.
Randolph, Mr. -Owner of the Randolph Shipping Company in Darwin, Australia. Recipient of goods from Edward Gavigan.
"Ruby" - Waitress at the Blue Heaven Club
Sommers, Ben - Brother of Julia.
Sommers, Julia - New York Cultist victim, formerly a librarian at Columbia University.
Stevens, Mr & Mrs - Loyal retainers of George Bryant at his New York Residence
Styles, Linda - Secretary to Jonah Kensington and Prospero Press.
Tarquin Tripp - A friend of Pierre, and lecturer in Egyptology at Columbia University. Has offered Pierre a job at a disappointing salary.
Thompson, Sylvia - A New York based friend of Pen. More here.
Thompson, Doris - Older sister of Sylvia, a friend of Erica Carlyle.
Turner, Leroy - Talented young trumpeter with a very unusual trumpet.
Wester, Mitchell - Cornet player, Leader of the Five Star Band.
Withers, Sam - Casual Labourer and Cocaine Addict, ritually murdered in New York by the Cult Of The Bloody Tongue.