笹部 吾朗

Goro was the swimming coach at the abandoned Iwatobi Swimming Club, having coached Haruka, Makoto, Nagisa, and Rin while they were in grade school, and had since became a part-time pizza delivery man. He later resumes coaching Haruka, Makoto, and Nagisa, with the addition of Rei.

He is normally very laid-back but can be incredibly strict with the Iwatobi boys when coaching.