Bi-Han

Bi-Han has always been a calculated but ruthless and remorseless Lin Kuei assassin, especially towards those he deems are his enemies. Although he was responsible for the brutal and savage murder of Hanzo Hasashi, Bi-Han was held accountable for the extinction of the Shirai Ryu, as well as the murder of Hanzo's family. This however was false and would unknowingly be Bi-Han's downfall, as Hanzo had been resurrected as the Spectre Scorpion seeking revenge. Killing Bi-Han in cold blood, he would be sent to the Netherrealm just like his rival, corrupted and reborn as the Wraith Noob Saibot, a staple character of the series. He would continue to be portrayed as Noob Saibot for the reminder of his appearances, serving as a primary antagonist towards Scorpion and even his younger brother in some instances.

Bi-Han's remorseless nature would only become worse as the Wraith Noob Saibot, as his corrupted soul would make him lust for his own form of power. He would become a recurring antagonist in the series afterwards, continuing to side with other villains in a bid for his own conquest.

In the alternate timeline, Bi-Han is not responsible for killing Hanzo Hasashi, rather Quan Chi killing the clan as payment towards Sektor, who refused to pay the demon after he had resurrected Hanzo as Scorpion. Bi-Han and Hanzo were resurrected as Noob Saibot and Scorpion by Quan Chi, their souls corrupted even further by the demon, though Hanzo was able to break free from this influence on two occasions - one being his own resurrection and the other was his past self witnessing his older variant die at the hands of D'Vorah. Bi-Han, however, continued to lust for power and dominance no matter what, attacking Hanzo and his younger brother on multiple occasions after making further deals with the villains of the franchise. He would continue to be a primary antagonist to Hanzo, however now becoming an antagonistic force towards Kuai Liang, as his younger brother was a complete opposite of what Bi-Han was as a human.

In the current timeline, Bi-Han, while still callous, is seen as one of Liu Kang's champions and aids the Fire God in Earthrealm's protection with his brothers Kuai Liang and Tomas. As the rightful heir to the Grandmaster, Bi-Han now leads the Lin Kuei, however like in the previous timelines, his antagonistic and villainous tendencies come to fruition when he betrays his brothers and Earthrealm, returning to his previous role from prior timelines.

Bi-Han as Noob Saibot in this timeline is significantly different than past iterations. This version of the character is corrupted by a Titan variant of Havik, a Godly counterpart from another timeline obsessed with any and everything chaos. Rather than be condemned to the Netherrealm and his soul being collected and transformed by Quan Chi, Titan Havik tortures then kills Bi-Han and corrupts his soul through the influence of chaos, granting him the same abilities and destructive mindset like before, but now, like Titan Havik, he is obsessed with anarchy and chaos, serving his new master to bring an anarchist utopia to all timelines.

Even before being transformed into Noob Saibot, Bi-Han was already shown to be cold and ruthless. Unlike his younger brother, Kuai Liang, Bi-Han was less compassionate and willing to kill his enemies without a second thought. He was also loyal to the Lin Kuei, taking on any task the Grandmaster assigned him no matter how dangerous or how evil the person he was working for was. Bi-Han was also shown to only be interested in making money, using the excuse to Raiden that "I was just earning my living," after he helped Quan Chi get Shinnok's amulet back. He also only entered the tournament to claim the large bounty on Shang Tsung. Originally, though, Bi-Han also had some heroic traits; he expressed regret for helping Quan Chi after being scolded by Raiden, and tried to compensate for it by heading to the Netherrealm to retrieve the amulet back.

After being resurrected as Noob Saibot, Bi-Han essentially becomes a worse version of himself. He is even more ruthless, sadistic and cold and completely lacks any empathy, and is willing to commit heinous crimes just for his master's endgame. After being freed from his master's control, he also continues to fight for the side of evil despite that.

His personality is expanded on in the second timeline, where he is shown to be even worse than depicted in the original timeline. He had an extreme hatred for the Shirai Ryu clan being complicit in Quan Chi framing up and vocally rejecting the idea of peace between them. He also insults the undead Scorpion's clan right in front of him, leading to his ultimate downfall. In the third and current timeline, Bi-Han is shown to heavily favour power over duty. He had resented his father for, in his eyes, preventing the Lin Kuei from achieving their "true potential"; his frustrations with the Lin Kuei led him to allow his father to die following an accident and betray Earthrealm to ally with Shang Tsung under the promise of power.

As Noob Saibot, he is shown mostly the same as his original timeline, though in this case, through the story's dialogue, more information about Noob's personality is shown. Noob is shown to embrace his path, admitting to Kuai Liang that his new path suits his purposes. He is also shown to be arrogant, believing himself to be a perfect creation from Quan Chi and that nobody can stand up to him. He also grows a deep hatred for his brother Kuai Liang outright, saying that they are no longer brothers and personally wanting to take him out on a few occasions. In Mortal Kombat 11, he also displays signs of being sexist, as seen during some of his interactions with Frost. Despite this, he does show that he may still have some respect and fondness for his brother, as he admits to Frost that Kuai Lang would make a better Grandmaster than her.