This page is for characters who appear in 3Below.
- The Trollhunters Click to Expand James "Jim" Lake Jr., Tobias "Toby" Domzalski, Claire Nuñez, Blinkous "Blinky" Galadrigal, Aarghaumont "AAARRRGGHH!!!", Kanjigar the Courageous
- House Tarron Click to Expand Aja Tarron, Krel Tarron, King Fialkov Tarron & Queen Coranda Tarron, Varvatos Vex, Luug, Mothership, Dadblank & Momblank
- Guardians of Arcadia Click to Expand Douxie Casperan, Steve Palchuk, Elijah “Eli” Leslie Pepperjack, Merlin, Archie, Stuart, Barbara Lake
- Gumm-Gumms Click to Expand Walter Strickler, Ms. Zelda Nomura, NotEnrique, Goblins
- Taylon Phalanx Click to Expand General Morando, Zeron Alpha, Zeron Omega, Zeron Beta, Halcon, Magmatron, Tronos Madu, Gwendolyn of Gorbon, Foo-Foos
- Arcane Order Click to Expand The Green Knight
- Other Humans Click to Expand Nana Domzalski, Ophelia Nuñez, Enrique Nuñez, Mary Wang, Darci Scott, Shannon Longhannon, Seamus Johnson, Señor Uhl, Coach Lawrence, Miss Janeth, Dr. Muelas, Detective Scott, Officer Brennan, Phil & Jerry, Colonel Kubritz, Sergeant Costas
- Other Trolls Click to Expand Vendel
- Other Aliens Click to Expand Lieutenant Zadra, Izita, Loth Saborian, Buster, Seklos & Gaylen, Akiridions
- Other Characters Click to Expand Gnome Chompsky, Zoe