Princess Leia was portrayed and voiced by Norwegian actress Ingvild Deila. They used archival footage to make character look and sound like Carrie Fisher.
Image Courtesy: Movie Pilot
As per this source,
While Deila initially acted in the scene, later in post-production the team from Light and Magic, Lucasfilm's in-house visual effects company, later ...
According to this interview with Rogue One sound editors Matthew Wood and Christopher Scarabosio, it's an old recording of Fisher:
Gwynne Watkins (Yahoo Movies): Carrie Fisher, who died suddenly last month, has obviously been on
Star Wars fans’ minds. What was your role in creating the Princess
Leia scene at the very end?
Matthew Wood: First ...
20 years is not a short amount of time.
Regardless, Pacino's voice has changed over the years, which is natural. In addition, his acting style has changed signficantly from the early Godfather days to more "shouty" characters...at least that is what he is known for.
However, he has been a smoker for many years.
Stopped a two-pack-a-day smoking habit to ...
They used Paul Walker's brothers, as explained in this article:
To double for Walker, the production turned to his younger brothers Caleb and Cody, as well as actor John Brotherton (who also has a separate role in the film). Visual effects artists then replaced their faces with Paul Walker’s face — but occasionally, Brian O’Connor’s lines would be a ...
In the case of the Simpsons, all of the main characters have been voiced by adults, and the same adults have voiced the same characters since the show started.
As for the Powerpuff Girls, many different actors have voiced the main characters. This site shows each of the characters alongside the current actors who voice them. Under those pictures is another ...
Were these song recorded for the episode, or did they just cast a professional singer and use his album tracks for the show?
It was Nana Visitor singing.
Actress Nana Visitor, who began her acting career as a stage musical actress, sings "Fever" in "His Way". Visitor's performance of "Fever" was included on The Best of Star Trek, Volume Two. Visitor ...
Normally it is done before the animation.
The voice acting is done and then the animators will match the animation of the characters to the voice.
They will sometimes use the movement of the actors too. In Aladdin a lot of the genies movements and behaviours can be seen in footage of Robin Williams delivering the lines.
It also allows the actors to ad-lib ...
Her last Star Trek related cinematic work was in the 2009 reboot Star Trek. The lens flare-iffic clip below has her mocking young Chekov:
But her last Star Trek related work was the 2010 MMORPG Star Trek Online. I'm not certain how much she recorded for it, how much is clips, and how much is her impersonator, Lani Minella.
Invader Zim is the love child of a megalomaniac and executive meddling. J.V. visión for the show is incredibly dark for what is supposed to be a children's show, and Nick couldn't commit to it. Because of that, Vasquez was forced to edit and re edit and change and rewrite many episodes, or Nick changed them afterwards.
The result is many jokes are dropped, ...
The budget is to blame:
Part of the problem stemmed from a simple lack of money. Despite the
success of One Hundred and One Dalmatians, Disney did not want to risk
that much money on the film, and severely trimmed the film’s budget.
It shows. If, for instance, you’re watching the film in a casual sort
of way and just happen to think, huh, that ...
I got this on DVD a while back and I can confirm that the American cast did record multiple versions. In my British English version the boy is called "Courgette" and there is no separate cast, the same American actors provide the voices.
There are also separate trailers for the British English 'Courgette' and American English 'Zucchini' versions (not ...
According to the IMDb Trivia
Jean Louisa Kelly, who plays Rowena, did all her own singing & dancing she is in fact a trained singer, dancer, and actress. In addition to movies she has done a number of stage productions including playing Snow White, the understudy for Rapunzel, and Little Red Riding Hood in the original Broadway production of Into the ...
All the indications are this this is Smith doing a somewhat interesting American accent. It's not surprising that it's coming off different from his usual English one. It's forced and so it naturally sounds different.
For an example of multiple US accents from Matt Smith see this Youtube clip
Trivia section on IMDb states (without references though) that
In many European countries, the title and main character were changed to Vaiana to avoid referencing Italian actress Moana Pozzi. The voice actors had to come back and re-record some of their lines.
Upon my research, I looked up who the actor from Picnicface is, and... Sure enough, he (Mark Little) is the voice of "Gary", the main character of Gary and his Demons:
...and I guess it's fair to say that, although not credited, he and/or other cast members will probably voice other characters on the ...