- "So empty. So true. The Past is a foreign country! We were monsters, but at least we were free!"
- —Greenteeth to Nilin
Johnathan "Johnny" Greenteeth (??? - 2084) was a doctor who worked alongside Sebastian Quaid in La Bastille. At an unspecified time, he began to suffer the effects of memory degeneration and symptoms of Leaperism which drove him from the heights of an affiliation with Memorize down into Slum 404.
Before he turned into Leaper, he was a La Bastille doctor who is working on the Reconversion Project. He is unknown how he become a Leaper and a Mourner but he stayed at Slum 404 as an hermit and a leader for the Leapers there.
Events of Remember Me
He is first seen scavenging something in the train and spotted by Nilin. He and his fellow Leapers attacked her but she defeated them and stole his memory on infiltrating into La Bastille. He is later seen in Episode 6 where he is shown invinsible and giving hints as a former doctor. He soon attack Dr Quaid and his bodyguards and managed to kill him by plummeting Dr Quaid to his death. He later order the destruction of La Bastille and attempted to kill Nilin but stopped by Bad Request and got Memory Overloaded and died in the following explosion.