List of monsters and villains

This is the list of villains and the monsters they portrayed. It also tells which episode that monster was featured in.

Scooby-Doo, Where Are You?
{| class="wikitable" width="600px" ! # || Episode title || Monsters || Villains
 * - bgcolor="#CCCCCC"
 * 1
 * "What a Night for A Knight"
 * Black Knight
 * Jeremiah Wickles
 * 2
 * "A Clue for Scooby-Doo"
 * Captain Cutler's Ghost
 * Captain Cutler himself!
 * 3
 * "Hassle in the Castle
 * Phantom of Vasquez Castle
 * Bluestone the Great
 * 4
 * "Mine Your Own Business"
 * Miner 49er
 * Hank
 * 5
 * "Decoy for a Dognapper"
 * The Witchdoctor
 * Buck Masters
 * 6
 * "What the Hex Going On?"
 * Ghost of Elias Kingston
 * Uncle Stuart
 * 7
 * "Never Ape an Ape Man"
 * Ape Man
 * Carl the Stuntman
 * 8
 * "Foul Play in Funland"
 * Charlie the Robot
 * The Jenkins
 * 9
 * "The Backstage Rage"
 * The Evil Puppeteer
 * Pietro the Puppeteer
 * 10
 * "Bedlam in the Big Top"
 * The Ghost Clown
 * Harry the Hypnotist
 * 11
 * "A Gaggle of Galloping Ghosts"
 * Dracula, Frankenstein's Monster, Werewolf
 * "Big Bob" Oakley
 * 12
 * "Scooby-Doo and a Mummy, Too"
 * Mummy of Anka
 * Dr. Najib
 * 13
 * "Which Witch is Which?"
 * The Zombie and The Swamp Witch
 * Zeke and Zeb Perkins, respectively
 * 14
 * "Spooky Space Kook"
 * The Space Ghost
 * Henry Bascombe
 * 15
 * "Go Away Ghost Ship"
 * Redbeard's Ghost
 * C.L. Magnus
 * 16
 * "A Night of Fright is No Delight"
 * The Phantom Shadows a.k.a "Giggling Green Ghosts"
 * Creeps and Crawls
 * 17
 * "That's Snow Ghost"
 * The Snow Ghost
 * Mr. Greenway
 * 18
 * "Nowhere to Hyde"
 * Ghost of Mr. Hyde
 * Dr. Jekyll
 * 19
 * "Mystery Mask Mix-Up"
 * Zen-Tuo's Ghost and two hooded zombies
 * Mr. Fong and two unnamed helpers
 * 20
 * "Scooby's Night With a Frozen Fright"
 * The Caveman
 * Professor Wayne
 * 21
 * "Jeepers, It's the Creeper!"
 * The Creeper
 * Mr. Carswell
 * 22
 * "Haunted House Hang-Up"
 * The Headless Specter and phony ghost
 * Penrod Stillwall and Asa Shanks
 * 23
 * "A Tiki Scare is No Fair"
 * Mano Tiki Tia and The Witchdoctor
 * John Sims
 * 24
 * "Who's Afraid of the Big Bad Werewolf?"
 * The Werewolf Ghost
 * Unnamed sheep rustler
 * 25
 * "Don't Fool With a Phantom"
 * The Wax Phantom
 * Roger Stevens
 * 21
 * "Jeepers, It's the Creeper!"
 * The Creeper
 * Mr. Carswell
 * 22
 * "Haunted House Hang-Up"
 * The Headless Specter and phony ghost
 * Penrod Stillwall and Asa Shanks
 * 23
 * "A Tiki Scare is No Fair"
 * Mano Tiki Tia and The Witchdoctor
 * John Sims
 * 24
 * "Who's Afraid of the Big Bad Werewolf?"
 * The Werewolf Ghost
 * Unnamed sheep rustler
 * 25
 * "Don't Fool With a Phantom"
 * The Wax Phantom
 * Roger Stevens
 * 25
 * "Don't Fool With a Phantom"
 * The Wax Phantom
 * Roger Stevens
 * Roger Stevens