I do not know if I understood correctly what you are asking.
When I translate to pt-BR in Google Translate, it gets confusing.

People's names are the same in any language change of the site interface.
The only text that changes is the Overview.
All other data entered on the person's page remain the same, with no translation.

The credits titles, movies or tv show, meet the change of language.
Of course, if they exist in that language. Otherwise the default (en-US) is used.

Bible
https://www.themoviedb.org/bible/people?language=en-US#59f747dc9251416e7100004b

If a person's name in their native language is not easily readable in English, it should be added as an alternative name.

The original names of people who are written in other alphabets must be romanized or transliterated.
Cyrillic, Chinese, Mandarin, Japanese, Korean, Arabic, Hebrew etc ...
The names, in the original alphabet, can and should be placed in Alternative Names.

I've already made the correction.

Sorry, I thought we had name translations at one point. Consider this resolved .