Umaru-chan E Sua Rival

Tetsuya Kakihara Alex Tachibana (voice)

前田弘喜 Store Manager (voice)

Rena Maeda Teacher (voice)

Miyu Tomita Female Student (voice)

サンカクヘッド Sankaku Head (voice)

兼政郁人 Clerk (voice)

茜屋日海夏 Female Student (voice)