Page "Mister Sinister" Paragraph 30

In the Ultimate X-Men series, Sinister / Nathaniel Essex is reimagined as a heavily tattooed street thug nicknamed after his tattoo.

He is a former OsCorp scientist who experimented on himself and appears schizophrenic, hallucinating of a " Lord Apocalypse " who orders him to kill a number of mutants to complete his transformation.

After committing suicide, Sinister returns to life, completes his mission and transforms into Apocalypse.

However, the Phoenix Force appears and destroys Apocalypse's body, revealing Sinister inside.

After the Ultimatum Wave, he reformed his body, and got a job at Roxxon as part of their " brain trust ", but once again appears talking to Apocalypse.