織田信成

Nobunari Oda is a commentator featured in the Grand Prix Final short program in Episode 11.

Oda is the fictional representation of a real life Japanese figure skater. The real-life Oda had personally requested to participate in the anime, and voiced his own character. In the English dub, he is replaced by an uncredited voice actor.

(Source: Yuri!!! On Ice Wikia)