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