Nightmare, alternatively known as Knightmare is a character that first appeared during 2002's Halloween Horror Nights: Islands of Fear, who was a demonic, nightmarish figure created to become the face of the scarezone titled Island of Evil Souls. When he returned for Halloween Horror Nights 13 in 2003, he once again had his own scarezone titled Immortal Island, and he fought Darkness in the Final Battle.
In 2012 it was revealed that Nightmare was a part of the Cerebin Legion.
- During Halloween Horror Nights: Tales of Terror, he made a brief appearance in the queue video for Terror Mines.
- During Halloween Horror Nights: Reflections of Fear in 2008, he was mentioned on the Legendary Truth website, as a previous case for the Collective. Nightmare also appeared in the event itself in the one of the video monitors on Interstellar Terror.
|Halloween Horror Nights: Islands of Fear|
|Characters: The Caretaker (Event Icon) • Cindy Caine (Scrapped Icon) • Carnage • Nightmare • Treaks and Foons|
|Haunted Houses: Fear Factor • Maximum Carnage • Project Evilution • Scary Tales II • Screamhouse|
|Scarezones: Boo-Ville • Island of Evil Souls • Island Under Siege • JP Extinction • Treaks and Foons • Port of Evil|
|Shows: Bill & Ted's Excellent Halloween Adventure • Fountain of Evil • Studio 666 • Town Square of Tortured Souls|