frederic laroche

Frédéric Laroche is an original character by Matsuda (matsukichi). His name was given in https://www.pixiv.net/member_illust.php?mode=medium&illust_id=21132807

He presumably goes by "Fred", since that matches the provided katakana for his first name (フレッド).

He normally wears a red, striped necktie.