Mi prima tampoco soporta el doblaje cuando la voz de la actriz no parece natural.

Tampoco is the negative counterpart of también.

• también = also / too
• tampoco = neither / not either / also not

So in this sentence, Mi prima tampoco soporta... means that the cousin also does not stand dubbing, usually implying that someone else mentioned before does not like it either.

Examples:

• Yo no soporto el doblaje. Mi prima tampoco.
  = I can’t stand dubbing. My cousin can’t either.

Compare with:

• Yo soporto el doblaje. Mi prima también.
  = I can stand dubbing. My cousin can too.

The verb soportar can literally mean to bear, to tolerate, or to put up with. In many everyday contexts, it is used like to stand in English.

So:

• soportar algo = to tolerate / stand something
• no soportar algo = to not stand something / to can’t stand something

In this sentence:

• Mi prima tampoco soporta el doblaje
  literally: My cousin also doesn’t tolerate dubbing
• more natural English: My cousin can’t stand dubbing either

So although support looks similar, this is a false friend. Soportar usually does not mean to support in the English sense of helping or backing something. For that, Spanish often uses apoyar.

El doblaje means dubbing: replacing the original spoken dialogue in a film or series with voices in another language.

This is a very common word in Spain, where dubbed films and TV are extremely common.

Related vocabulary:

• el doblaje = dubbing
• doblar una película = to dub a film
• la versión doblada = the dubbed version
• la versión original = the original version
• los subtítulos = subtitles

Both structures exist, but they are used differently.

The normal, neutral way to say my cousin is:

• mi prima

Spanish usually puts possessive adjectives like mi, tu, su, nuestro before the noun in ordinary statements.

• mi prima = my female cousin
• mi hermano = my brother
• mi casa = my house

The longer form with de or with the stressed possessive after the noun is more marked:

• la prima mía
• una prima mía

These can sound more emphatic, contrastive, or stylistically different depending on context. In a straightforward sentence like this one, mi prima is the natural choice.

Yes. Prima means female cousin, and primo means male cousin.

Spanish often marks gender in family words:

• primo = male cousin
• prima = female cousin
• actor = male actor
• actriz = actress

So Mi prima tells you the speaker is talking about a female cousin.

Spanish usually expresses possession with de, where English often uses ’s.

So:

• la voz de la actriz = the actress’s voice

This structure is extremely common:

• el coche de mi hermano = my brother’s car
• la casa de Marta = Marta’s house
• la opinión del director = the director’s opinion

Spanish generally does not use an apostrophe possession like English does, so de is the normal way.

Also, la voz actriz would not work here. You need the possession relationship:

• la voz = the voice
• de la actriz = of the actress

Because actriz here refers to a specific, identifiable person: the actress whose voice is being discussed.

Spanish often uses the definite article with nouns in this kind of structure:

• la voz de la actriz
• el coche del vecino
• la casa de la profesora

If you said de actriz, it would sound incomplete or unnatural here.

In Spanish, no normally goes directly before the verb it negates.

So:

• no parece natural = doesn’t seem natural

This is the standard word order:

• no quiero = I don’t want
• no viene = he/she isn’t coming
• no funciona = it doesn’t work

Spanish does not normally say parece no natural for this meaning.

Also, if you want to say unnatural, Spanish much more naturally uses:

• no parece natural = it doesn’t seem natural

rather than trying to build it the way English builds unnatural.

That is a very good question, because in English you would probably say doesn’t sound natural.

In Spanish, both parecer and sonar can sometimes work depending on nuance:

• no parece natural = it doesn’t seem natural
• no suena natural = it doesn’t sound natural

In this sentence, parece natural is perfectly normal and broad. It judges the overall impression.
If the speaker wanted to focus more specifically on the audio quality or how it sounds to the ear, suena natural would also be very possible.

So:

• La voz no parece natural = The voice doesn’t seem natural
• La voz no suena natural = The voice doesn’t sound natural

Both are acceptable, but parecer is a little wider and more general.

Because the sentence is talking about a situation seen as real, habitual, or generally true.

• cuando la voz de la actriz no parece natural
  = when the actress’s voice doesn’t seem natural

This means something like: whenever that happens, she can’t stand dubbing.

With cuando, Spanish uses:

• indicative for habitual, repeated, known, or real situations
• subjunctive for future or uncertain situations

So here the indicative makes sense:

• cuando ... no parece natural

Compare:

• No soporto el doblaje cuando la voz no parece natural.
  habitual/general → indicative

But:

• No lo veré cuando salga.
  future event → subjunctive after cuando: cuando salga

Spanish often uses the definite article in places where English might use no article.

Here, el doblaje refers to dubbing as a general thing or category:

• soporta el doblaje
• me gusta el cine
• odio el ruido
• prefiero la música clásica

In English, we often say:

• I hate dubbing
• I like cinema
• I hate noise

But in Spanish, using the article is often the natural choice:

• No soporto el doblaje
• Me gusta el cine
• Odio el ruido

Yes, depending on the context.

Soportar can mean:

• to bear
• to tolerate
• to put up with

But because this sentence has tampoco soporta, a very natural English rendering is can’t stand ... either.

Compare:

• Soporta bien el ruido.
  = He/She tolerates noise well
• No soporta el ruido.
  = He/She can’t stand noise

So can’t stand is a very idiomatic translation of no soportar, even if the literal sense is not tolerate.

Grammatically, la actriz just means the actress, and the sentence itself does not explicitly clarify which actress that is.

In real context, there are two possible interpretations:

• the original on-screen actress’s voice
• the dubbed voice associated with the actress on screen

However, because the topic is doblaje, many listeners would understand this as referring to the voice heard in the dubbed version and whether it feels natural for that actress/character.

So the exact interpretation depends on context, not grammar alone.

Yes. In this sentence, cuando is very naturally understood as when/whenever.

Because the sentence expresses a repeated reaction, English could translate it as:

• My cousin can’t stand dubbing either when the actress’s voice doesn’t seem natural
• My cousin can’t stand dubbing either whenever the actress’s voice doesn’t seem natural

That repeated, habitual sense is one reason the indicative is used after cuando here.

You would change actriz to actor:

• Mi prima tampoco soporta el doblaje cuando la voz del actor no parece natural.

Notice the contraction:

• de + el = del

So:

• la voz de el actor ❌
• la voz del actor ✅

That is the normal Spanish contraction.

Yes, it sounds natural, especially in Spain, where discussion about dubbed content is very common.

Words like doblaje, and opinions about whether a voice sounds believable or natural, are extremely normal in Spanish from Spain. The sentence is clear, idiomatic, and grammatically standard.