The Engineer

The Engineer was one of the principal architects of humanity’s post-cataclysm existence. The Engineer oversaw the design of megastructures to serve as habitats for post-history humankind.

## The Engineer

### Aliases

The Builder
Licorice
Professor Hiro
Dr. Wrenfield
A.J. Lee

## Early Life

The Engineer was born in a region of the North American continent known as California during its Information Age. His father was an immigrant from the nation-state called China and his mother was a descendent of immigrants from the nation-state called Korea. He enjoyed a relatively affluent upbringing and excelled in math and science in school. In university, he studied several fields of engineering, graduating with honors. He then pursued graduate degrees in both structural engineering and architectural design.

His efficiency as both an engineer and a designer allowed him to establish himself as a freelance consultant before he was thirty years old. His apartment building was the site of a localized fissure, though, creating a shallow alternate timeline approximately one year before the fissure’s appearance. Once the fissure was evident, he met The Doctor and eventually managed to traverse the fissure to the Torus.

## The Plan

After realizing that the Torus had survived the end of human history, he and The Doctor set out to understand its power and find a way to rectify the Cataclysm. The Engineer studied the records and technology of the Torus and discovered the extent of the damage to reality, identifying hundreds of alternate timelines through his early research. When The Doctor suggested bringing survivors to the timeline occupied by the intact Torus, he pointed out that there would be billions, if not trillions of people in the fractured timelines. Realizing that construction time was not a limiting factor, though, he suggested using drones to build megastructures to replace the Earth and house the human race.

## Relationship with The Doctor

He and The Doctor experienced an immediate attraction to one another and would likely have pursued a conventional romantic relationship had they not become entangled in investigating the fissures and eventually crossing over to the Torus. After becoming isolated in the Torus, he and The Doctor spent several years together (along with the young child who would come to be known as The Custodian) and developed a partnership that seemed to include, but also transcend romantic attachment.

## Alternate Versions

A version of The Engineer from an alternate timeline was recruited via the Torus to assist Taffy in at least one mission. This version of The Engineer is initially very confident in his understanding of the physics of space travel, rejecting the possibility of artificial gravity. The version of The Engineer who settles inside the shell as part of post-history society has some association with the version of The Doctor settled there. During one meeting, it was revealed that they did not live on the same continent and had no romantic connection. Taffy’s opinion from her meeting with alternate versions of both The Doctor and The Engineer during an early mission, though, seems to have been that the two of them were still strongly attracted to one another and would eventually end up together.