- animecharactersdatabase.com va.php…
- kinogo.biz actors/26573-nobuhiko-okamoto.html
- findanime.net list/person/okamoto_nobuhiko
- gowo.tv casts/587086
- ewikikk.top wiki/Nobuhiko_Okamoto
- animenewsnetwork.com encyclopedia/people.php…
- kinopoisk.ru name/1571688/
- hdrezka.in person/28744-nobuhiko-okamoto/
- ru.wikibrief.org wiki/Nobuhiko_Okamoto
- ru.doralive.top people/nobuhiko-okamoto-2462004