Big Badsclick to expand Lothos, The Master, Drusilla, Angelus, The Mayor, Adam, Glory, Warren Mears, The First Evil, Twilight, Dark Willow, Simone Doffler, Severin, D'Hoffryn
Sunnydale Residentsclick to expand Sunnydale High: Principal Snyder, Jenny Calendar, Principal Wood, Principal Flutie, Dr. Gregory, Nurse Greenleigh, Coach Marin, Mr. Platt. Other Characters: Joyce Summers, Jonathan Levinson, Ben Wilkinson, Amy Madison, Devon Macleish, Larry Blaisdell, Parker Abrams, Willy the Snitch, Percy West, Rack, Scott Hope, Katrina Silber, Cassie Newton. One Shot Characters: Catherine Madison, The Pack, Dr. Weirick, Dave Kirby, Fritz Siegel, Marcie Ross, Kevin Benedict, Debbie Foley, Michael Czajak, Tucker Wells, R.J. Brooks.
Sunnydale Highclick to expand Principal Snyder, Jenny Calendar, Principal Wood, Principal Flutie, Dr. Gregory, Nurse Greenleigh, Coach Marin, Mr. Platt, Larry Blaisdell, Cassie Newton, The Pack, Dave Kirby, Fritz Siegel, Marcie Ross, Kevin Benedict, Debbie Foley, Michael Czajak, Tucker Wells, R.J. Brooks.
Vampiresclick to expand The Order of Aurelius: The Anointed One, Luke, Thomas, The Three, Absalom, Darla. Recurring Vampires: Harmony Kendall, Mr. Trick, The Gorch Brothers, Dalton, Sandy, Jesse Murphy, Vampire Willow, Tom, Dracula, Turok-Han. One-shot Vampires: Amilyn, Andrew Borba, Billy "Ford" Fordham, Theresa Klusmeyer, Kakistos, Lenny, Vampire Xander, Zachary Kralik, Alphonse, Sunday, Eddie, Boone, Justin, Holden Webster, Anne Pratt. Post-series Vampires: Toru, Raidon, Kumiko.
Demons and Monstersclick to expand Recurring Demons and Monsters: Clem, Halfrek/Cecily, Veruca, Norman Pfister, The Judge, Acathla, Kathy Newman, Olaf, , Razor. Glory's Minions: The Minions (Jinx, Murk, Dreg & Gronx), Doc, Spawn of Sobek. One-shot Demons and Monsters: She-Mantis, Moloch, Marc, Daryl Epps, Ampata, Machida, Eyghon, Mother Bezoar, Der Kinderstod, Gill Monsters, Ken, Pete Clarner, Kulak, Lurconis, Lagos, Hans & Gretta Demon, Jack's Gang (Jack O'Toole, Bob, Parker & Dickie), Balthazar, Gachnar, Hus, The Gentlemen, Fyarl, Toth, The Queller, Sweet, Teeth, Stewart Burns, Wig Lady, Gnarl, Lissa, The Bringers. Comic Demons and Monsters: Sephrilian, Monroe, Pearl & Nash.
Watchers and Slayersclick to expand Slayers (pre-Season 7): Sineya (The First Slayer), Kendra Young, Faith Lehane. Season 7 Potential Slayers: Kennedy, Vi, Rona, Molly, Amanda, Chao-Ahn, Chloe, Caridad. Post-Season 7 Slayers: Genevieve Savidge The Watcher's Council: Quentin Travers, The Shadow Men, Special Operations Team (Weatherby, Collins & Smith), Lydia, Gwendolyn Post, Robson, Merrick Jamison-Smythe.
Other Charactersclick to expand The Initiative: Professor Maggie Walsh, Forrest Gates, Graham Miller, Colonel McNamara, Dr. Francis Angleman. The Knights of Byzantium: General Gregor, Orlando, Dante Chavalier. Other Characters: Caleb, Ethan Rayne, Hank Summers, Enyos, Ellis, Sid, Cain, April, Samantha Finn.