Darrius first appeared in Mortal Kombat: Deception. He was once a member of the Seidan Guard, but became tired of Seido's oppressive laws. He then formed a resistance movement to overthrow Seido's government. Taking advantage of Seido's laws, Darrius used unscrupulous tactics to gain new recruits for the resistance. One such method was to murder the families of Seidan Guardsmen. Overcome with grief, the guardsmen would retaliate, thus breaking the law, leading to their eventual expulsion. Now outcasts, Darrius would then welcome them into his army.
During the events of Mortal Kombat: Deception, Darrius hires former guardsman Dairou to steal the Seidan government's Declaration of Order, a scroll depicting its laws. It is also believed that Darrius commissioned Dairou to kill Hotaru, a leading member of the Seidan Guard.
In Deception's Krypt, an unlockable piece of concept art depicts Darrius as the new leader of the Red Dragon.
In Darrius's Mortal Kombat: Armageddon ending, he defeats Blaze, causing the pyramid to shrink and turn into a ring. Darrius takes the ring, and with it, defeats Hotaru and creates a new world order for Seido. Because the ring was meant for Taven and Daegon, however, Argus sends them to retrieve it and work together to get what Darrius has stolen.
Alignment:
Alignment: Neutral
Mortal Kombat: Deception

I am Darrius. There are many in the Realm of Order who would call me a terrorist. But to the true patriots of Seidan, I am a hero. I fight against the rule of an oppressive regime. I am the leader of the resistance movement. Our numbers are ever-growing. One day I will lead the charge against the establishment. Until then, I wait... and plan... and scheme.
One of the best recruitment tools I have discovered is the law itself. If my ranks are in need of powerful warrior like Seidan Guardsman, for instance, I will hire an outsider to kill the man's family in the hope that his rage will lead to a violent altercation with the assassin. Once he is imprisoned for the attack, I free the Seidan Guardsman and easily recruit him to our cause.
Mortal Kombat: Deception

The mercenary Dairou had succeeded in stealing the Declaration of Order and was paid many koins for his efforts. After Darrius hid the document, he announced its capture to the world and heralded in a new beginning for the realm of Seido.
As Darrius had predicted, officials were outraged that the Resistance had stolen the most prized possession of the Seidan government. Hotaru was ordered to lead the charge against them. He underestimated their numbers, however, and the Resistance defeated him and his men. The senate would soon be in the hands of the revolutionaries.
Mortal Kombat: Armageddon

Upon defeating Blaze, the pyramid shrank and transformed into a golden ring. The ring granted Darrius access to my vault, wherein lay the treasure rightfully due my sons Taven and Daegon. The powerful artifacts allowed Darrius to finally defeat Hotaru and conquer the realm of Order. But the items were meant only for my lineage to wield. I have now sent Taven and Daegon on yet another quest. They must work together to defeat Darrius and retrieve what he has stolen.