|The Headless Horse|
The Headless Horse in Sleepless in Ponyville
|Mane||¤ Very dark blue tail with grayish indigo outline|
|Coat||Very dark blue|
Development, design, and gender
The Headless Horse's build is similar to those of Princess Luna, Fleur Dis Lee, Princess Cadance, the Mane-iac, "Tropical Dream", Sassy Saddles, S06E20 Unnamed Earth Mare #8, S06E20 Unnamed Earth Mare #9, and S06E20 Unnamed Earth Mare #10. Though its body is that of a mare, The Headless Horse is predominantly referred to with gender-neutral pronouns; however, it is referred to with a female pronoun in a piece of merchandise.
Depiction in the seriesThe Headless Horse is first mentioned in the season one episode Look Before You Sleep. During Twilight Sparkle's slumber party at the Golden Oak Library, she tells the Headless Horse story to Applejack and Rarity, and she scares them by briefly impersonating The Headless Horse itself.
- "It was a dark and stormy night, just like this one. And three ponies were having a slumber party, just like this one... [...] ...and just when the last pony thought she was safe, there, standing right behind her, just inches away was -- The Headless Horse!'"
- — Twilight Sparkle
In the season three episode Sleepless in Ponyville, Rainbow Dash tells the story of The Headless Horse to Applejack, Rarity, Apple Bloom, Sweetie Belle, and Scootaloo during a camping trip. Applejack interrupts the story at least twice to comment on The Headless Horse's lack of eyes and brain. The Headless Horse subsequently appears in Scootaloo's nightmares, resembling Princess Luna.
- "I've been told that these very woods are haunted... by The Headless Horse! It gallops only at night... [...] ...looking for little lost ponies... [...] Fear was dripping from the air... [...] ...and they were never heard from ever again!"
- — Rainbow Dash
In Applejack and the Honest-to-Goodness Switcheroo, Applejack briefly recalls the events of Sleepless in Ponyville and remembers the story of The Headless Horse.
The Elements of Harmony guidebook pages 198-199 chronicle the events of Sleepless in Ponyville differently, expanding The Headless Horse's in-episode role with her additionally replacing the in-episode role of The Olden Pony (who is shown on page 199).