- findanime.net list/person/okamoto_nobuhiko
- ewikikk.top wiki/Nobuhiko_Okamoto
- animenewsnetwork.com encyclopedia/people.php…
- ru.wikibrief.org wiki/Nobuhiko_Okamoto
- mp3pesni.cc mp3/нобухико-окамото.html
- animecharactersdatabase.com va.php…
- kinogo.biz actors/26573-nobuhiko-okamoto.html
- gowo.tv casts/587086
- hdrezka.in person/28744-nobuhiko-okamoto/
- kinopoisk.ru name/1571688/