Sakonji Urokodaki (鱗うろこ滝だき 左さ近こん次じ Urokodaki Sakonji?) is a retired member of the Demon Slayer Corps, having held the position of the previous Water Hashira (水みず柱ばしら Mizu Bashira?). He is the main cultivator of the Water Breathing, having trained Giyu Tomioka, Tanjiro Kamado, Sabito and Makomo.
Sakonji's face has never once been revealed or depicted throughout the entire completed manga; he is always seen wearing a tengu mask that covers his entire face although Tanjiro states through a Taisho secret that Sakonji's face is very gentle and calm. He appears to be an elderly individual, as noted by the countless number of students he's trained, along with his silver-colored hair. In his youth, his hair was black and fashioned into a topknot.
He is always seen wearing a cloud-patterned jinbei kimono with navy colored pants which are fastened at his shins by white kyahan guards. He also wears traditional black tabi socks, and sandals similar to Tanjiro, except his sandals have blue straps. On the occasions when Sakonji travels, he wears a white cloth that covers his head and wraps around his neck.
Jigoro Kuwajima (桑くわ島じま 慈じ悟ご郎ろう Kuwajima Jigorō?) is the man who trained Zenitsu Agatsuma and Kaigaku. He was formerly the Thunder Hashira (鳴なり柱ばしら Nari Bashira?) in the Demon Slayer Corps.
Jigoro was a very short, elderly man with visible forehead wrinkles and large, slanted eyes, as well as a straight scar with even six prongs running along his right cheekbone. He had notably bushy eyebrows and a large moustache, as well as slick white hair that he wore smoothed down to puff out around the base of his head, with what would've been a fringe also swept back away from his face. Jigoro was also missing his right leg, with a wooden peg taking its place, this feature made more prominent in the anime than the manga.
Jigoro wore a jinbei styled kimono like the one worn by Sakonji Urokodaki, only with a yellow-brown base color and a pale triangle pattern in the stead of the blue and water-patterned theme Sakonji sports. He also carried a thick wooden cane with him to support his body due to age and his missing leg.