1. Sabertooth Fairy
  2. Sabertooth Squirrel
  3. Sacrificial Prawn
  4. Sad Hatter
  5. Sad Panda
  6. Safety Dancer
  7. Salamandarin
  8. Salt-Resistant Slug
  9. Salvador Dalek
  10. Sanctimonious Whiner
  11. Sandboxer
  12. Sans Sheriff
  13. Santa Claws
  14. Sarcastic Samurai
  15. Satan Claus
  16. Satan's Little Helper
  17. Satanic Mechanic
  18. Sawed-off Shogun
  19. Scape Goat
  20. Scare Bear
  21. Scare Tactician
  22. Scared Crow
  23. Scarepion
  24. Scentaur
  25. Scentipede
  26. Schizoid Man
  27. Schizophrenic Hydra
  28. Schoolyard Bully
  29. Schrödinger's Cat
  30. Schrödinger's Possum
  31. Sci-Fly
  32. Scientific Method Actor
  33. Scorntrooper
  34. Scotch Guard
  35. Search Engineer
  36. Seasick Crocodile
  37. Secret Satan
  38. Secretary of Fate
  39. Secretary of Offense
  40. Security Badger
  41. Security Chimera
  42. Security Gourd
  43. Seeing-Eye Mole
  44. Self-Appointed Expert
  45. Self-Assassin
  46. Self-Con Troll
  47. Self-Fulfilling Prophet
  48. Self-Sacrificial Lamb
  49. Self-Terminator
  50. Selfish Gene
  51. Semanticore
  52. Semi-Automatic Automaton
  53. Semi-Demi-God
  54. Sensei of Humor
  55. Septic Tank Commander
  56. Serial Killer Bee
  57. Serial Numberer
  58. Serial Self-Killer
  59. Sesame Street Fighter
  60. Seven Year Lich
  61. Sewer Gator
  62. Sewer Horse
  63. Shadow of a Doubt
  64. Shadow Puppet
  65. Shadow Worrier
  66. Shaman Kong
  67. Shameless Pug
  68. Shampoodle
  69. Sharkshooter
  70. Sharp Dressed Mandrill
  71. Sheep in a Wolf's Clothes
  72. Sheep in Wolf's Clothes
  73. Sheepshifter
  74. Sheepwalker
  75. Shetland Phony
  76. Shift-Shaper
  77. Shishke Blob
  78. Shock Therapist
  79. Shoe Hornet
  80. Shoop Da Whoop
  81. Shooting Tsar
  82. Shopping Mauler
  83. Short-Sighted Visionary
  84. Short-term Prophet
  85. Shoulder Devil
  86. Shoving Leopard
  87. Shrunken Headmaster
  88. Significant Otter
  89. Silent Alarmist
  90. Silent Knight
  91. Silent Lamb
  92. Silly Goose
  93. Singing Shark
  94. Single Mummy
  95. Sir Caustic
  96. Sir Dance-a-Lot
  97. Sir Render
  98. Sitcom Pilot
  99. Sitting Duck
  100. Sixth Sensei
  101. Skeletoff
  102. Sketchy Artist
  103. Sleeping Dead
  104. Sleepwalking Dead
  105. Slender Man
  106. Slightly Invisible Man
  107. Slim Reaper
  108. Slime Shady
  109. Slithy Tove
  110. Slow Wight
  111. Smashing Pumpkin
  112. Smith Sci-Fly
  113. Smoke Detective
  114. Smoking Gunslinger
  115. Smooth Criminal
  116. Snake Oil Salesman
  117. Snap-Dragon
  118. Snappy Retortoise
  119. Sneerleader
  120. Snobgoblin
  121. Snow Angel
  122. Soccer Mummy
  123. Social Parasite
  124. Social Passivist
  125. Social Security Guard
  126. Socialist Butterfly
  127. Sock Eating Machine
  128. Sock Elemental
  129. Sock Puppetmaster
  130. Software Giant
  131. Solar Bear
  132. Soldier of Misfortune
  133. Sole Eater
  134. Son of a Glitch
  135. Son of a Gun
  136. Son of a Witch
  137. Sore Winner
  138. Soul Proprietor
  139. Space Invader
  140. Space Monkey
  141. Spag-Yeti
  142. Spaghetti Elemental
  143. Spaghetti Westerner
  144. Spambot
  145. Spanish Inquisitor
  146. Spark Pug
  147. Special Character
  148. Spectral Spectre
  149. Speed Sloth
  150. Spell-Podcaster
  151. Spelling Bee
  152. Spice Ghoul
  153. Spice Worm
  154. Spider Pig
  155. Spinal Columnist
  156. Spirit of Competition
  157. Spirit of Repossession
  158. Splitting Hare
  159. Spoiled Milkman
  160. Spork-Wielding Lunatic
  161. Spraying Mantis
  162. Spring Chicken
  163. Sputterfly
  164. Spywarewolf
  165. Square Groot
  166. Squid Pro Quo
  167. Stalking Horse
  168. Stand-up Chameleon
  169. Standard Deviant
  170. Staple Gunner
  171. Star Shrek
  172. Star-Crossed Astrologist
  173. Stare Master
  174. Starfish Trooper
  175. Starless Knight
  176. Starving Artist
  177. Static Electrician
  178. Steam-Powered Pleasurebot
  179. Steamed Punk
  180. Steel Rat
  181. Stem Cellmate
  182. Stereotypical Villain
  183. Stick Figure
  184. Stomach Bug
  185. Stoned Golem
  186. Stool Pigeon
  187. Strange Stranger
  188. Street Fighter
  189. Street Mage
  190. Stripeless Zebra
  191. Stunt Double Agent
  192. Sturgeon General
  193. Stuttering Mime
  194. Stuttering Spellcaster
  195. Stygian Pixie
  196. Styrofoam Cop
  197. Subconscientious Objector
  198. Subhero
  199. Subliminal Masseuse
  200. Subliminal Messenger
  201. Substitute Creature
  202. Subtracting Adder
  203. Sulphuric Aphid
  204. Sumo Ninja
  205. Sun Dog
  206. Sun-Dried Vampire
  207. Sunbathing Vampire
  208. Sunday Driver
  209. Superb Owl
  210. Supersonic Hedgehog
  211. Supersonic Woodpecker
  212. Surreal Killer
  213. Surveillance Chimera
  214. Suspended Animator
  215. Suspicious Character
  216. Swan Songwriter
  217. Sweaty Yeti
  218. Sweeny Toad
  219. Swiss Army Knight
  220. Sycophantom
  221. Synchronized Swindler
  222. Syntax Terror
  223. Synthetic Organism