Technical Boy is one of the New Gods and, as a personification of the Internet, he is a purveyor of all things technology.
Odin
Old Gods: Mr. Wednesday – An aspect of Odin, the Old Norse god of knowledge and wisdom. Czernobog – The Slavic god of darkness, twin brother to Belobog, the god of light. Mr. Wednesday is a crafty and endlessly charismatic conman full of perverse wisdom, curious magic, and grand plans to unite the Old Gods in a battle for power against the New Gods
Mr. World is the leader of the New Gods and is a personification of globalization.
Queen of sheba - Bilquis is one of the Old Gods. As an ancient goddess of love who craves the worship she inspired in eras long gone, she is eager to find that same relevance in today's world.
Anansi - Mr. Nancy is from the West African pantheon, where he was known as a trickster spider god. He's eager to share his prodigious gifts of knowledge and speech with anyone who will listen. While loyal to the cause of the old gods, his thirst for chaos at any cost makes him an unreliable member of Wednesday's team. He also gains power and worship as stories are told about him.
Mad Sweeney is a down on his luck leprechaun who is having a hard time understanding how he lost his charm and way. Always up for a good fight, Sweeney is never deprived while in the employment of Mr. Wednesday. Mad Sweeney was a medieval Irish king who was cursed by St. Ronan to madness and wandering. On the eve of a battle, he is transformed into a bird and flees in derangement. He was brought to America by Essie MacGowan and others like her. He eventually lost his accent after living in America for so long.
Czernobog is one of the Old Gods, and comes from Slavic mythology.
Kali -
Mama-ji is Kali, one of the Old Gods, and a character in American Gods.
Hindu goddess of war. With her necklace of skulls, acerbic wit, and free spirit, she’s a match for any mighty god or man.
Thoth, Tahuti, Thot Mr. Jacquel, Bast, Horus - Mr. Ibis is one of the Old Gods, and a supporting character in American Gods.
Mr. Ibis runs Ibis and Jacquel Funeral Parlor with his partner, Mr. Jacquel. Mr. Ibis is also the narrator of some of the Coming to America stories told throughout the series.
Mr. Ibis tells the stories of humans and their gods, recording their lives onto paper. He is the author of several of the Coming to America stories.
Transfiguration: Mr. Ibis has the ability to transform into an ibis.
Media, also known as New Media, is one of the New Gods and is a personification of mass media, global content, social media, and entertainment
Mack, Big Mack - Mr. Town is one of the Spooks who works for Mr. World. Mr. Town has been tasked by Mr. World to find out what Shadow knows about Mr. Wednesday’s plan. His brutal efficiency and technique just may get him the answers to his curious questions
The Children - The Spooks and the Children work for the New Gods in varying capacities.
The Children are the faceless minions who do the bidding of the New Gods. They can be possessed by the New Gods as seen in "Come to Jesus" when both Technical Boy and Mr. World inhabit their bodies.
The Spooks
The Spooks work for Mr. World as part of an unidentified "agency" hunting Shadow.
Mr. Wood (married)
Mr. Stone (wears glasses)
Mr. Road
Mr. Town
Low Key Lyesmith is Loki, the Norse trickster god and one of the Old Gods. He is Shadow's old prison mate.
Media/Novel
Media is one of the New Gods and is a personification of television.