Justin Law is one of supporting characters of Soul Eater.
He is voiced by Yoshinori Fujita in the Japanese Version and Eric Vale in the English Version.
He dresses in the garb of a Catholic priest, and worships Shinigami as his god. He constantly listens to blaring music through earphones, which blocks his hearing, though he is capable of understanding others through lip reading.
He takes the form of a guillotine, and is capable of fighting without a meister partner by transforming his arms and parts of his lower body into blades and the frame of his weapon form, and increasing his own soul wavelength through prayer.
Exclusively in the manga storyline, Justin is found to have been driven insane by Asura's madness wavelength, causing him to replace Shinigami with the kishin as his god. He defects from DWMA after murdering Joe Buttataki and framing Stein for it, and briefly joins forces with Noah until he finds Asura on the moon. He battles twice with his former friend Tezca Tlipoca, who burns and deforms the left half of his face in their second battle. He participates in the battle between DWMA and Asura as one of the kishin's minions, and is later killed by Stein and Marie.
- He is noted by other characters for having turned himself into a death scythe on his own at the age of thirteen, becoming the youngest weapon student at DWMA to become a death scythe.
- His Japanese Voice Actor, Yoshinori Fujita is best known voicing as Kaoru Hitachiin in Ouran High School Host Club.
- His English Voice Actor, Eric Vale, who also voiced Yuki Sohma in Fruits Basket, Sanji and Demaro Black in One Piece, Ultimate Imposter in Danganronpa 2: Goodbye Despair, Future Trunks in Dragon Ball Z, Loke in Fairy Tail, America in Hetalia, Nishiki Nishio in Rize, Kazuma in Noragami, Toya in Tsubasa: Reservoir Chronicle, Arystar Krory III in D.Gray-man, Diablo in How NOT to Summon a Demon Lord, Tobari Durandal Kumohira in Nabari no Ou, Hachi in Darling in the Franxx, Tomura Shigaraki in My Hero Academia, Solf J. Kimblee in Fullmetal Alchemist, Tsunenaga Tamaki in Deadman Wonderland, Pandora's Actor in Overlord, Huey Laforet in Baccano!, Rideaux Zek Rugievit in Tales of Xillia 2, King of the Night in Is this a Zombie?, Arthur Boyle in Fire Force, Phoenix Wright in Ace Attorney, Popuko in Pop Team Epic, Casshern in Casshern Sins, Teppei Takamiya in B't X and Boom & Bewm in Borderlands 2.