Architect

The Architect is a character in Xenoblade Chronicles 2. He is said to have created Alrest.

Appearance and personality
The Architect is a man with a skeletal constitution and long gold hair. The right half of his body is replaced by a dark void. He wears the ragged remains of his lab coat, with several wires and green tubes connected to his back. The Architect is full of regret, believing that his immortality via the Conduit is a punishment from on high from when he conducted the experiment with it eons ago. He also believed that it was fate that the new human race that he created were destined to destroy each other.

Story arc
Despite being mentioned multiple times throughout the story, the Architect never appears in-person until Chapter 7 in a flashback in which he examines the empty terminal that once contained the Trinity Processor. In Chapter 10, he refers to himself as a fool, and says that "the time has come". Malos is the first to meet him; the Architect refers to him as "Logos". Confused, Malos asks him what the name means; he answers that it means nothing, but it represents of the egos of those who named him. Malos then asks him how many years have passed since they last met, and the Architect says that it has been too long to remember. Malos then tries to kill the Architect to no avail, with the latter revealing that he's dying anyway. Malos then asks if his own will is really his, with the Architect replying that it was 'a choice they made together'. Malos then thanks him for creating him and leaves to take control of Artifice Aion.

When Rex and his companions reach Elysium, they find it a barren wasteland much to Rex's shock. As the party explores the ruins, they come across a church. The Architect greets them as they enter the ruined building. Pyra recognizes his voice, which surprises Mòrag, prompting her to ask where he is; he replies that he "is always here", then requests them to come to him, opening a secret passage beneath the altar. When the party descends the stairs, he tests them by making them experience the fears they unconsciously harbored; in the process, Rex nearly breaks down. This prompts Pyra to ask the Architect to put an end to the illusions, which he agrees to do.

The party then finds themselves in the Architect's Room, much to their confusion. The Architect explains that he wanted to examine the shapes of their hearts. He then introduces himself as Klaus, saying that he has been watching them throughout their journey. Rex asks him if he created the illusions they saw, which he confirms. In turn, Zeke and Dromarch confront him about the purposes of the illusions; his answer is that he wished to find out how mankind has changed and where it is heading. Mòrag then asks the Architect if he was disappointed in the results, to which he replies that he is not, further explaining that it is good enough how they stand before him right now. Rex then tells him he came here because of Pyra, and asks if this really Elysium. The Architect responds by telling the party that he will show them his and the planet's memories. He explains that Alrest (at the time it was Earth) was once the center for a struggle for survival that dwarfed the current situation on Alrest. He explains that humans lived for themselves, and that "the natural state of man" was to harbor desires and struggle to realize them. He lost hope for mankind because of it, searching for an outside solution; he found this in the form of the Conduit, although he does not know why it appeared before humanity. The Architect revealed to the party that many universes exist side-by-side but unaware of one another, and the Conduit was the link to those worlds. The Architect opened this link by conducting the experiment that created Alrest, hoping it would change the world for the better. He then asks the party if they have seen the ruins of Morytha, the remains of Earth. When he activated the Conduit, the majority of the planet — including the right half of his body — disappeared into many dimensions. At this point the Architect's room lights up to reveal a dark void that was once his right half, shocking the entire party, and says that half of him is living in another dimension, but not for long as that half's death is approaching.