Brother 3 was a member of The Empty Seven; a group of monks who believed that by obtaining the ancient headbands they would obtain immortality and godhood.
Unlike the rest of his brothers who would constantly plot Afro Samurai's death, Brother 3 was more laid-back and would choose to instead listen to his music.
He was probably the most rational and wisest among his brothers since he was the only member of The Empty Seven who wasn't killed or severely injured.
For the Afro Samurai anime mini-series Brother 3 was voiced by Phil Lamarr.
For the anime movie Afro Samurai: Resurrection, Brother 3 was voiced by Jeff Bennett.