Thank you very much.
For those who do not know, the TMDb rule is to keep the oldest, the smallest ID.

Gunnar Nelson (III)
TMDb OLD 0 https://www.themoviedb.org/person/1114218-gunnar-nelson IMDB ID nm4734228
IMDB https://www.imdb.com/name/nm4734228/ Gunnar Nelson (III) - Actor

Gunnar Nelson (IV)
TMDb new 1 https://www.themoviedb.org/person/1134712-gunnar-nelson IMDB ID nm5819457
IMDB https://www.imdb.com/name/nm5819457/ Gunnar Nelson (IV)

The question is: Do the 4 Profiles above, 2 TMDb and 2 IMDB, belong to the same person?
WIKI https://en.wikipedia.org/wiki/Gunnar_Nelson_(fighter) Gunnar Nelson (fighter)

In Progress

And to make everything easier ....
I found one more.
And this guy ... has a twin brother.

Gunnar Nelson (I)
https://www.themoviedb.org/person/1242256-gunnar-nelson
https://www.imdb.com/name/nm1623078/ Gunnar Nelson (I) - Soundtrack | Actor | Composer
WIKI https://en.wikipedia.org/wiki/Gunnar_Nelson_(musician) Gunnar Nelson (musician)

Add 5 images
Add Bio Wiki

In Progress

TIP: If you want to force the line break, click Space 2 times and then click Enter. Just Space > Space > Enter.

Yes, the four first links are the same person (Icelandic MMA fighter).

(I've already submitted a request to merge the IMDb pages over at IMDb, but that's not complete yet.)

The other Gunnar Nelson is the American singer/songwriter from the group The Nelsons, not the same as the Icelandic MMA fighter.

Thank you very much.

Move 9 credits
Add Bio Wiki https://en.wikipedia.org/wiki/Gunnar_Nelson_(fighter)
Move Primary Facts + Alternative Names + External Links
Move images
https://image.tmdb.org/t/p/original/1hIxOg0kSzJLyyhBIs8P0ffopOL.jpg
https://image.tmdb.org/t/p/original/kzldZCwr5tnGMsZzBrB2Fu73Kgy.jpg
https://image.tmdb.org/t/p/original/iMo0VRUtztZ60Y4fXlTj70a7334.jpg

Del TMDb new 1 https://www.themoviedb.org/person/1134712-gunnar-nelson

Done

TIP: If you want to force the line break, click Space 2 times and then click Enter. Just Space > Space > Enter.