| Name | Class | C. | Type | Icons | Traits | Set | Encounter |
|---|---|---|---|---|---|---|---|
| Acolyte | Mythos | Enemy | Humanoid. Cultist. | Core Set 169 | Dark Cult 1-3 | ||
| Beings of Ib | Mythos | Enemy | Monster. Elite. | The Search for Kadath 148 | The Search for Kadath 30 | ||
| Benign Elder Thing | Mythos | Enemy | Monster. Elder Thing. | Edge of the Earth Campaign Expansion 142 | City of the Elder Things 28-30 | ||
| Brood of Yog-Sothoth | Mythos | Enemy | Monster. Abomination. | Undimensioned and Unseen 255 | Undimensioned and Unseen 23-27 | ||
| Brood of Yog-Sothoth: Charging Beast | Mythos | Enemy | Monster. Abomination. | Return to the Dunwich Legacy 42 | Return to Undimensioned and Unseen 2 | ||
| Brood of Yog-Sothoth: Thrashing Spawn | Mythos | Enemy | Monster. Abomination. | Return to the Dunwich Legacy 44 | Return to Undimensioned and Unseen 4 | ||
| Brood of Yog-Sothoth: Amorphous Terror | Mythos | Enemy | Monster. Abomination. | Return to the Dunwich Legacy 45 | Return to Undimensioned and Unseen 5 | ||
| Brotherhood Acolyte | Mythos | Enemy | Humanoid. Cultist. | Return to the Forgotten Age 71 | Cult of Pnakotus 1-3 | ||
| Brown Jenkin: The Witch's Familiar | Mythos | Enemy | Creature. Familiar. Elite. | The Secret Name 148 | The Secret Name 36 | ||
| Cats of Ulthar | Mythos | Enemy | Creature. Elite. | The Search for Kadath 145 | The Search for Kadath 27 | ||
| Colorless Larva | Mythos | Enemy | Creature. Insect. Mutated. | The Feast of Hemlock Vale Campaign Expansion 63 | The Silent Heath 17-19 | ||
| Coterie Agent (A) | Mythos | Enemy | Humanoid. Coterie. | The Scarlet Keys Campaign Expansion 216 | Crimson Conspiracy 1 | ||
| Coterie Agent (B) | Mythos | Enemy | Humanoid. Coterie. | The Scarlet Keys Campaign Expansion 216 | Crimson Conspiracy 2 | ||
| Coterie Agent (C) | Mythos | Enemy | Humanoid. Coterie. | The Scarlet Keys Campaign Expansion 216 | Crimson Conspiracy 3 | ||
| Deep One Hatchling | Mythos | Enemy | Monster. Deep One. | A Light in the Fog 255 | A Light in the Fog 26-29 | ||
| Disciple of the Devourer | Mythos | Enemy | Humanoid. Cultist. | Return to the Night of the Zealot 41 | The Devourers Cult 1-3 | ||
| Dr. Wentworth Moore: Dark Supplicant | Mythos | Enemy | Humanoid. Cultist. Brotherhood. | Guardians of the Abyss 32 | Brotherhood of the Beast 2 | ||
| Droning Horde | Mythos | Enemy | Monster. Insect. Servitor. Elite. | War of the Outer Gods 48 | Swarm of Assimilation 3 | ||
| Furtive Zoog | Mythos | Enemy | Creature. Zoog. | The Dream-Eaters 106 | Zoogs 1-2 | ||
| Gang Informant | Mythos | Enemy | Humanoid. Criminal. Syndicate. | The Drowned City Campaign Expansion 14 | One Last Job 17-18 | ||
| Horde of Night | Mythos | Enemy | Monster. Elite. | The Search for Kadath 147 | The Search for Kadath 29 | ||
| Hotel Guest | Mythos | Enemy | Humanoid. Guest. Innocent. | Murder at the Excelsior Hotel 22 | Murder at the Excelsior Hotel 26-29 | ||
| House Dealer | Mythos | Enemy | Humanoid. Casino. | Fortune and Folly 36 | Fortune and Folly 38 | ||
| House Dealer | Mythos | Enemy | Humanoid. Casino. | Fortune and Folly 36 | Fortune and Folly 39 | ||
| Hunting Parasite | Neutral | Enemy | Monster. Stowaway. | The Drowned City Campaign Expansion 35 | The Western Wall 23 | ||
| Inconspicuous Zoog | Mythos | Enemy | Creature. Zoog. | The Dream-Eaters 108 | Zoogs 5 | ||
| Initiate of Dagon | Mythos | Enemy | Humanoid. Hybrid. Cultist. | The Innsmouth Conspiracy 85 | Agents of Dagon 2-4 | ||
| Lodge Neophyte | Mythos | Enemy | Humanoid. Cultist. Silver Twilight. | The Circle Undone 95 | Silver Twilight Lodge 1-3 | ||
| Lost Researcher | Mythos | Enemy | Humanoid. Possessed. | Edge of the Earth Campaign Expansion 200 | Left Behind 1-2 | ||
| Mi-Go Drone | Mythos | Enemy | Monster. Mi-Go. | The Blob That Ate Everything 33 | Mi-Go Incursion 13-15 | ||
| Nahab: She Who Signed the Black Book | Mythos | Enemy | Monster. Geist. Witch. Elite. | The Secret Name 149 | The Secret Name 37 | ||
| Old Sadie Sheldon: Bootlegging Kingpin | Mythos | Enemy | Humanoid. Criminal. Syndicate. | Machinations Through Time 40 | Machinations Through Time 37 | ||
| Pit Viper | Mythos | Enemy | Creature. Serpent. | The Forgotten Age 78 | Serpents 1-3 | ||
| Pitch Spider | Mythos | Enemy | Monster. Spider. | Point of No Return 273 | Descent into the Pitch 1-2 | ||
| Possessed Extra | Mythos | Enemy | Humanoid. Possessed. | Film Fatale 19 | Film Fatale 27 | ||
| Possessed Extra | Mythos | Enemy | Humanoid. Possessed. | Film Fatale 20 | Film Fatale 28 | ||
| Possessed Extra: Humanoid. Possessed. | Mythos | Enemy | Film Fatale 21 | Film Fatale 29 | |||
| Randall Tillinghast: Out for Your Blood | Mythos | Enemy | Humanoid. Sorcerer. Elite. | The Drowned City Campaign Expansion 186 | The Doom of Arkham Part I 5 | ||
| Sheldon Gang | Mythos | Enemy | Humanoid. Criminal. Syndicate. Elite. | Machinations Through Time 41 | Machinations Through Time 38-40 | ||
| Squamous Parasite [tdc_rune_t] | Mythos | Enemy | Monster. Glyph. | The Drowned City Campaign Expansion 80 | The Apiary 34 | ||
| Stealthy Zoog | Mythos | Enemy | Creature. Zoog. | The Dream-Eaters 107 | Zoogs 3-4 | ||
| Stowaway Drone | Mythos | Enemy | Monster. Stowaway. | The Drowned City Campaign Expansion 221 | Stowaways 1-3 | ||
| Swamp Leech | Mythos | Enemy | Creature. | Curse of the Rougarou 23 | The Bayou 24-26 | ||
| Swarm of Rats | Mythos | Enemy | Creature. | Core Set 159 | Rats 1-3 | ||
| Swarm of Spiders | Mythos | Enemy | Creature. Spider. | The Dream-Eaters 102 | Spiders 2-4 | ||
| Trylogog | Mythos | Enemy | Creature. Insect. | War of the Outer Gods 49 | Swarm of Assimilation 4-7 | ||
| Trylogog | Mythos | Enemy | Creature. Insect. | War of the Outer Gods 49 | War of the Outer Gods 46 | ||
| Undersea Parasite [tdc_rune_x] | Mythos | Enemy | Monster. Glyph. Elite. | The Drowned City Campaign Expansion 49 | The Drowned Quarter 16 | ||
| Whippoorwill | Mythos | Enemy | Creature. | The Dunwich Legacy 90 | Whippoorwills 1-3 | ||
| Whippoorwill | Mythos | Enemy | Creature. | Union and Disillusion 266 | Union and Disillusion 29-31 |