The TMDb rule is to keep the oldest, the smallest ID.
OLD 0 https://www.themoviedb.org/person/274812 IMDB ID nm0284451
new 1 https://www.themoviedb.org/person/1119798-andrey-fomin IMDB ID nm4798990
There are 4 Andrey Fomin at IMDB:
https://www.imdb.com/name/nm0284451/ Andrey Fomin (I) https://www.themoviedb.org/person/274812
https://www.imdb.com/name/nm4798990/ Andrey Fomin (II) https://www.themoviedb.org/person/1119798-andrey-fomin
https://www.imdb.com/name/nm9661979/ Andrei Fomin > None here in TMDb with this IMDB ID
https://www.imdb.com/name/nm9770679/ Fomin Andrey > None here in TMDb with this IMDB ID
WIKI https://ru.wikipedia.org/wiki/%D0%A4%D0%BE%D0%BC%D0%B8%D0%BD,_%D0%90%D0%BD%D0%B4%D1%80%D0%B5%D0%B9_%D0%92%D0%BB%D0%B0%D0%B4%D0%B8%D0%BC%D0%B8%D1%80%D0%BE%D0%B2%D0%B8%D1%87
WIKI https://fr.wikipedia.org/wiki/Andre%C3%AF_Fomine
SITE http://www.fominproduction.ru/

Since November 15, 2012 we already had in Alternative Names the romanized version Andrei Fomin.
It was when they switched from Andrei Fomin to Андрей Фомин.
We must preserve the oldest.
Even with the name not romanized, it could be found by the Romanized in alternative names.

The question is: How many Andrey Fomin exist in real life?

From Wiki

1. 1988 — La Petite Véra (Маленькая Вера) de Vassili Petchoul ː Andreï, étudiant <> tt0095574 <> https://www.themoviedb.org/movie/41961-malenkaya-vera
   
2. 1989 — Nuits sombres dans la ville de Sotchi (В городе Сочи тёмные ночи) de Vassili Petchoul ː le dramaturge <> tt0098574 <> https://www.themoviedb.org/movie/389862-v-gorode-sochi-tyomnye-nochi
3. 1989 — Fais-le (Делай — раз!) d'Andreï Malioukov ː le soldat Yeriomenko
4. 2003 — Les Voleurs de livres (Похитители книг) de Leonid Rybakov ː le producteur <> tt2460110 <>
5. 2006 — Jouer les victimes (Изображая жертву) de Kirill Serebrennikov ː Sysoïev, l'intellectuel neurasthénique <> tt0820096 <> https://www.themoviedb.org/movie/64484
6. 2009 — Court-circuit (Короткое замыкание) de Kirill Serebrennikov <> tt1437224 <> https://www.themoviedb.org/movie/70137
7. 2009 — Hamlet. XXIe siècle (Гамлет. XXI век) de Youri Kara ː Polonius
8. 2011 — Le Baiser à travers le mur (Поцелуй сквозь стену) de Vartan Akopian <> tt1806996 <> https://www.themoviedb.org/movie/57207-potseluy-skvoz-stenu
9. 2011 — Génération P (Generation П) de Victor Ginzburg ː Morkovine <> tt0459748 <> https://www.themoviedb.org/movie/63375-generation-p
10. 2014 — 22 minutes (22 минуты) de Vassili Serikov ː l'officier-navigateur <> tt2856896 <> https://www.themoviedb.org/movie/271234-22-minuty
11. 2017 — Оперетта капитана Крутова — Николай Аркадьевич Артамонов, художественный руководитель театра

@creo.ev , I need your help. We are like this now:

https://www.themoviedb.org/person/274812
https://www.imdb.com/name/nm0284451/ Andrey Fomin (I)
https://fr.wikipedia.org/wiki/Andre%C3%AF_Fomine
I added all credits I found on Wikipedia.

https://www.themoviedb.org/person/1119798-andrey-fomin
https://www.imdb.com/name/nm4798990/ Andrey Fomin (II)
Of this here, I do not know if the credits of this belong to the other.

Maybe they're two different people.
You need to add the images of this in the other ID, which will remain.

@ticao2 Yup, it looks like the new profile was created for the younger actor. I fixed the incorrect info and removed the misplaced images.

I don't know which one (if any) directed the episodes of Next, though.

I had already forgotten.
I was waiting for a response from @creo.ev , and she did not come.
Thank you Banana.