This article is about the real life individual. For the character that is based on him, see Omega (character).

Sean "Omega" O'Neil is a longtime member of the Slender Man Mythos community who joined the Fear Mythos in 2011. He is mostly know for writing Encyclopedia Slenderia, an informative blog that was meant to analyze the various blogs in the Slenderverse. He eventually discontinued the blog in 2013 due to his growing lack of interest in the setting.
Stories he has written
Novels
- Mephi (founded as a mesh of The Fear Mythos, The Slender Man Mythos and The Cthulhu Mythos)
Blogs
- Smiting the Gods (part of the collaborative multi-blog Slenderverse series, Operation Wintergreen)
- Picking at Ruins (the story of a middle management paper pusher that serves The Slender Man)
- High School Never Ends (a high school AU where The Fears are the students)
- I Am Her Slave (a blogpasta about a man who has been enslaved by The Wooden Girl)
- Burn the Sky (a Convocation blogpasta meant to break away from the first person narrative)
- The All Seeing I (an experimental blogpasta that explores the ideas and themes behind The Eye)
- Leviathan (the story of a cargo ship that disappears in the Pacific Ocean after an encounter with EAT)
- Omega's Bizarre Adventure (the story of Omega's quest to defeat The Fears)
- The Soulless Empress (dieselpunk/fantasy short story about Princess Savitashri and her transformation into a Fear)
- It's Always Raining Here (a blog about a woman named Rosa who sells information on The Fears)
Creepypasta
- Amen (a creepypasta about The Archangel that focuses on religious dogmatism rather than the afterlife)
- Decay (a creepypasta about a metaphorical take on The Dying Man)
- The Queen of Maggots (the debut short story for the Fear of the same name)
Trivia
- After Omega announced that people could use him as an open source character on the Slender Nation forum as a joke, his author avatar became a reoccurring character throughout multiple Slender Man blogs.
Gallery
Omega alongside CuteWithoutThe. Drawn by Cadet.