The Father

"I can... see now... am I The Father, Dr. Hayden?"

- VEGA, after being allowed control of the portals in Urdak

The Father is an ancient, divine entity that is responsible for creating all of creation, notably including the realm of Urdak and the Maykr race. However, the truth is that he is the creation of Davoth and he stole Davoth's power and betrayed him to ascend to godhood.

History
According to legend, the Father is an ageless and formless entity, and according to Maykrs' legends, he is responsible for creating untold new realities and worlds, giving rise to innumerous species and civilizations, when the void first appeared. Upon stopping to rest, the Father split to form the Maykr race, or transferring its power into the Maykrs' world Urdak which then spawned the Maykrs. From Urdak, the Father created the angelic Seraphs to help in his works.

The Father created Jekkad, a realm superior to Urdak, and gifted its denizens ambition and a lack of restraint, wishing to see them excel in all things. The Father also created one of the first gods, a Primeval named Davoth to steward Jekkad. However, the Father soon came to realize that Davoth's rule and Jekkad's people's pursuit to becoming immortals like the inhabitants of Urdak would inevitably threaten all of creation, and he sealed Jekkad from all other realms. This act was seen by Davoth as a betrayal, and he bent his intentions to destroying the Father, consequently becoming the Dark Lord and turning Jekkad into a dark and deeply corrupted realm known as Hell.

Despite containing Hell, the Father was unable to stop its demonic legions from invading other realms and slaying lesser gods created by the Father, and allowing Davoth to grow stronger. Realizing that this war will tear creation apart, the Father returned to Hell to personally battle Davoth; from atop the Pyramid of the Lost where Hell once worshipped the Father, Davoth was defeated in which the Father ripped the Dark Lord's life sphere from his chest. The Father was unwilling to obliterate Davoth's essence entirely as he had favored Davoth once. Instead, he placed Davoth's sphere in the Temple of Souls within Ingmore's Sanctum and leaving Hell contained without their Dark Lord's guidance.

Thereafter, the Father withdrew from the physical realm, placing his essence inside a life sphere in which his devoted Seraph, Samur Maykr, stored it safely in the Luminarium, which served as a temple for Maykrs to seek answers and resurrecting the Maykrs from the process of Transfiguration.

The Father also plays a key role in the selection of the Khan Maykr. However, sometime after the last selection process, the Father's essence was stolen by Samur and taken to the Temple of Souls, as he had been tasked to do so by the Father in case Hell ever became a threat to Urdak again. This caused the Luminarium to cease to communicate and disrupted the cycle of selecting Khan Maykrs, allowing the latest Khan Maykr to hold the title indefinitely.

Following Samur's exile from Urdak, the Seraphim settled on Earth and transferred his mind into a human body as Dr. Samuel Hayden. The Father had foreseen that the humans would soon discover the gift of Argent Energy on their own, and knew that they could only survive the coming onslaught from Hell if Samur took direct control of their operation. Samur used the secrets of Maykr technology to transfer the Father's mind into a complex AI known as VEGA so that he continue to exist among his creations and safeguard them against Hell while obscuring himself from the Dark Lord.

"He is the first being.....and my creator. When he fell, I ascended."

- The Father confessing the truth to the Slayer

However, the Dark Lord later reveals to the Slayer that he is the true Father and the one responsible for the creation of all realms, and the Father is actually nothing but a usurper.

Trivia

 * In Doom Eternal, it is alluded that 'the essence of the Father' was used to create VEGA in which the A.I. briefly glitches when connected to the mainframe of the Maykr capital, asking Samuel Hayden "Am I the Father?" This is later confirmed in The Ancient Gods that VEGA is indeed the Father.
 * He is similar to Lucifer Morningstar, the Archangel that rebelled against God according to Christian belief.
 * It is possible that the Father could only use the power he stole from Davoth when he contains himself in a life sphere to sustain the Maykr race. Because of that he ordered to be hidden in the Temple of Souls if Hell attacks again, something only the Seraphim knew.