Dr. Crossword Arno

 Dr. Arno Crossword (クロスワード・アルノ博士, Kurosuwaado Aruno Hakase) is a character introduced in Inazuma Eleven GO 2: Chrono Stone.

Game
He experts advocate the theory when multiple time and invented the method of entry into the wormhole.

Anime
He first appeared in Episode 005 (Chrono Stone). He explained how time travel works and paralel world. Then, Yamana Akane simplifiesdthe explanation, as she likes scientific fiction.