|Japanese name:||火口 卿介|
When he receives the Death Note, he is instructed by Rem to carry out routine killings of criminals, then do whatever he pleases with the Note outside of the killings. He then meets weekly with the rest of the Yotsuba Group to discuss the killing of key individuals from competing companies to maintain dominance in the business industry. While they realize that one of them is Kira, they initially do not know it is Higuchi. During L's probe on the group, Higuchi kills Hatori after Hatori produced a "careless outburst." Rem aids the capture of Higuchi by revealing his identity to Misa. Misa reveals her admiration of Kira and uses her status as the second Kira to get him to propose to her and admit to being Kira on tape.
He is then betrayed by his fellow Yotsuba Group members, which involves Matsuda appearing on Sakura TV to reveal that Higuchi is Kira. This leads to him acquiring the Shingami Eyes, and he uses them to evade the police for a short time on his way to Sakura TV. However, he is eventually thwarted by a masked police blockade set up by L's task force. He attempts to suicide so he won't get caught, but Watari uses his expert marksmenship to shoot the gun out of his hand. He then reveals to everyone the existence of Death Notes. Light touches the Death Note while inspecting it, thereby regaining his memories of being the real Kira. Light then uses a Death Note scrap hidden in his watch to kill Higuchi. He is voiced by Issei Futamata in the Japanese version, and Andrew Kavadas in the English version.
Ohba selected Higuchi to be Kira for several reasons. Most of the other members of the Yotsuba group had already been used as "red herrings" and other roles that ruled them out in Ohba's mind. Higuchi was chosen through the process of elimination, using his greed as a criterion to fit the Yotsuba Kira's mold.
Tom S. Pepirium, an editor of IGN website, describes Higuchi in a review of the Death Note episode "Performance" as having "more in common with Cobra Commander than anyone from Death Note, announcing his nefarious plans to no one in particular. Even throwing in a few evil chuckles for good measure."