Shirai Ryu

The Shirai Ryu is a clan that Scorpion served in and led until its defeat by the Lin Kuei. At time of its defeat, Hanzo was a very high rank in the clan, and after its defeat and his death, he was resurrected by Quan Chi to participate in the Mortal Kombat Tournament. With the Shirai Ryu all dead and Scorpion its only member, he vowed revenge on Sub-Zero and the Lin Kuei for his clan's vengeance. On his journey, he encountered Wasp, who he trained and made a member of the clan. Scorpion, for the first time after his death and resurrection, actually cared for Wasp and saw him as a younger sibling.

Alternate Timeline
In the alternate timeline, Scorpion and Wasp are working together with Shang Tsung's forces and Raiden's forces and is introduced to a now cybernetic surviving member of the Shirai Ryu, Toxik.