Sobre
A fan of various idol groups, including both the original and current incarnation of B-Komachi. He is referred as Tenchou, meaning "store manager" and base on the panel he appears in, he is most likely the manager of the Akiba Idol store. (Source: Oshi no Ko Wiki)
Kana's Music Producer
Kana's Child Actor Agency Manager
Policeman
Nurse
Drama Director
Hikaru Kanzaki
Akane's Mother
Mem-Cho's Mother
Kyun
Director
Mana Suzushiro
Ryousuke Sugano