Dennis Andrew Nilsen

Personality
He is a very proper, boring person, and he has serious issues with revenge. He takes killing seriously, and loves to kill.

Prior to Cuando El
Denneh was a Scottish serial killer and necrophile who murdered at least twelve young men between 1978 and 1983 in London, England. Convicted at the Old Bailey of six counts of murder and two of attempted murder, Nilsen was sentenced to life imprisonment on 4 November 1983, with a recommendation that he serve a minimum of 25 years. In his later years, he was incarcerated at Full Sutton maximum security prison. However, he escaped the prison and after meeting a witch at random, who told him about the upcoming apocalypse, decided to destroy the world that forced him into jail for his natural expression of his love and lust and desire. He prepared and networked with various serial killers, including Ricky Gervais, Jeff the Killer and Patrick Bateman. He tried to get into contact with Jeffrey Dahmer, only to be told to "fuck off". All of them plotted in secret to create the utmost destructive Cuando El event possible...

During Cuando El
...and succeeded. Richard Millar was chosen to control the apocalypse, and became the main leader in the destruction, all whilst he was controlled in secret by Dennis Nilsen. After Ricky Gervais had liberated himself from Denneh's manipulation and became a better man, fighting on the side of Jonneh and Alleh, Denneh was worried for the success of Cuando El. The final blow for his movement occurred after a blow to Richard Millar's head, where he reverted to his initial personality, realised the wrong of his actions, how he was controlling and manipulative and a horrific abuser... and sacrificed himself to save the life of Rickeh, Jonneh and Alleh. At this, Denneh was mortified, discovering that try as he might he could not keep Cuando El running, and in his desperation, tried to call upon the power of Elliot Rodger. His call was declined and Denneh, having realised everything was lost and if he were to keep living, he would be imprisoned yet again, took his life. His death just fueled the fires of Cuando El, leaving Rickeh, Alleh, and Jonneh with a new demon to fight: El Belly.

Jeffrey Lionel Dahmer
The two used to be in love, but after Denneh's arrest and Jeffreh's subsequent polyamorous relationship, Jeffreh has grown to hate Denneh.

Richard Millar
Through the use of threatening and intruging anonymous letters, Denneh makes Richard Millar learn about Cuando El, with the end result of Richard Millar creating the Cuando El cult. This plan works out perfectly, until Richard Millar discovers the existence of Denneh and what he is trying to do.

Ricky Dene Gervais
The two work together until Ricky has a mid life crisis and realises what is actually happening. After this, the two violently hate each other.

Jeff the Killer
Jeff has an unrequited crush on Dennis. Because of Jeff's young age, he is Dennis's apprentice in killing.

Patrick Bateman
The two work together, but apart from that the two don't spend much time together.

Quotes
"I will enjoy this destruction."

"Jeff, please stop using my toothbrush... no, I do not care if it was an accident. Please cease this activity."

"Sometimes, at night... I think: am I wrong? And all my doubts coalesce in my chest. Amplified to such a volume I could not deafen myself to their taunting and second guessing. Yet I keep going forward. That is what you must do, Jeff."

"Fuck, I stubbed my toe!"

"Try and kill me, Gervais. You know you cannot. For I am Dennis Andrew Nilsen. The bringer of Cuando El. The destroyer of this world."