Casting an original animated production often means finding the performer who will help establish what a new character sounds like. Dubbing begins from almost the opposite position. The character is already visible on screen, another actor has already performed the role, and everything from the character’s age and personality to their physical behavior and emotional reactions may already be established. The new casting process has to find a performer who can convincingly inhabit that existing character in another language.
That does not necessarily mean finding someone who can perfectly imitate the original actor. Voice matching can be part of the process, particularly with established franchises and recognizable performers, but professional dubbing guidelines also place considerable emphasis on performance. A dubbing actor has to capture the character’s emotional life while working around timing, synchronization and a performance that has already been filmed or animated. The casting process therefore has to answer a more complicated question than who sounds closest to the original voice: who can make this character believable in another language?
Does a Dubbing Actor Have to Sound Like the Original?
Vocal resemblance seems like an obvious starting point for dubbing. If a character has a deep, restrained voice in the original production, replacing it with an extremely high and energetic performance could alter how audiences perceive that character. Age, vocal weight, energy and other characteristics can all contribute to the impression created by the original performance, so casting teams have good reason to consider them.
Exact matching, however, is not always the goal. Netflix’s professional dubbing guidelines explicitly acknowledge that pitch, articulation, vocal attack and other qualities can work differently across languages. Its casting guidance prioritizes an authentic performance over an exact vocal duplicate when both cannot realistically be achieved, unless a particular voice quality is essential to the character or the dubbed track has to interact with portions of the original audio. The objective is to find a voice that works for the character’s portrayal, not simply the closest acoustic copy of the original performer.
That distinction becomes even more important once acting range enters the equation. A performer might produce an impressive imitation during a short audition but still need to sustain the character through comedy, anger, grief, action scenes and quieter conversations across an entire series. The voice also has to survive the practical demands of dubbing, where the actor must respond to the original performance while fitting dialogue into predetermined timing. Casting therefore considers not only what a performer sounds like, but what that performer can do with the role.
Auditions Have to Reveal More Than a Voice Match
The precise audition process varies considerably between studios and productions. Actors can be provided with character information, selected dialogue, visual material or references to the original performance, while projects with tighter confidentiality may restrict how much context is available. For major roles, several samples or rounds of consideration may be required before a performer is approved. Netflix’s voice-testing specifications, for example, allow for multiple actor samples for a role and can require specific characters to receive additional voice approval.
The material selected for an audition also has to reveal whether an actor can handle the character rather than merely reproduce one memorable vocal quality. A protagonist who spends most of an episode speaking quietly might later have an emotionally intense confrontation. A comedic supporting character could eventually receive a serious storyline. Casting based only on the most obvious version of the character risks selecting someone who works for one type of scene but struggles when the performance expands.
Dubbing directors consequently have to listen for qualities beyond pitch or vocal texture. Timing, emotional responsiveness, characterization and the actor’s ability to follow direction can all matter. The visual performance provides another test. Professional dubbing principles describe the actor’s task as both understanding the character internally and responding to what the performer or animated character is physically doing on screen. The successful audition has to suggest that the actor can work within both sides of that equation.
Casting the Character Instead of an Impression
The difference between matching a voice and matching a character is one of the most important distinctions in dubbing casting. The original actor provides an invaluable reference, but the localized performer still has to act. If every line becomes an attempt to duplicate another person’s vocal mannerisms, the result can preserve superficial similarities while losing the emotional purpose of the performance.
Casting teams can instead identify the characteristics that make the role recognizable. A reserved character may need restraint more than a particular pitch. A young hero may require vulnerability underneath an energetic exterior. A villain whose original performance is unusually quiet may depend on control rather than simply having a deep voice. Those qualities can be recreated without requiring the localized performer to possess an identical instrument.
There are also linguistic reasons why an exact match may not produce the same effect. A pitch or delivery style associated with a particular type of character in one language does not automatically communicate the same impression to audiences speaking another. This is one reason professional dubbing guidelines distinguish between matching the sound of the original and preserving the way the character is portrayed. The casting process is ultimately looking for a corresponding performance, and correspondence is not always the same thing as imitation.
The Dubbing Director May Not Make the Decision Alone
The dubbing director often plays a central role in casting because that person will eventually have to shape the entire localized ensemble. Current professional guidelines recommend creative oversight during casting sessions rather than treating auditions as a purely technical recording exercise. The director can evaluate whether a performer understands the character, respond to an initial audition with new direction and hear how the actor changes the performance after receiving notes.
The approval process can become more complicated on high-profile productions. A localization company may conduct auditions and recommend performers while a distributor, language production team, rights holder or original creative team retains some level of approval. Netflix’s own procedures provide for additional voice testing when particular characters require approval, and its dubbing principles note that high-profile titles can involve the original creative team or the company’s language production staff in casting decisions. There is consequently no single approval chain that applies to every dub.
Established franchises introduce another consideration. If one performer has already become the localized voice of a character or repeatedly dubbed a particular live-action actor, maintaining that relationship may be preferred. Netflix’s guidelines specifically call for previously established voices to be considered and generally retained when an actor has voiced the same character or performer across multiple productions. In those situations, casting is not starting from zero. The localized performance itself has become part of the continuity that the new production has to consider.
Recasting Means Working With Two Existing Performances
When an established dubbing actor is replaced, the casting problem changes again. The new performer is no longer following only the original-language character. Audiences may have spent years hearing another localized actor in the role, creating a second established interpretation alongside the source performance. A new casting decision can therefore involve balancing fidelity to the original character with continuity in the dubbed version.
Recasting can happen for many practical reasons. Actors may become unavailable, production can move between studios, schedules may conflict, contractual circumstances can change, or a performer may retire or die. A franchise can also receive an entirely new localization years later. Whatever the cause, the production has to decide how closely the replacement should resemble the previous localized voice. Sometimes preserving continuity is important enough to make vocal similarity a major consideration. In other cases, a production may allow the incoming performer to establish a noticeably different interpretation.
The difficulty is that copying the previous actor too closely can recreate the same problem as copying the original actor: the replacement still needs enough freedom to perform. A voice that has become familiar to audiences is important, but a character expected to continue through many hours of new material requires an actor capable of handling everything the role demands. Long-running dubbed franchises consequently turn casting into an ongoing continuity decision rather than something that happens only when the first episode is produced.
Casting One Character Can Affect the Entire Ensemble
Individual performances cannot be considered entirely in isolation. Two actors may each sound excellent for their respective roles but become difficult to distinguish when their characters share scenes. Conversely, contrasting voices can help establish relationships and make a large cast easier to follow. The director therefore has to listen to the developing ensemble as well as individual auditions.
That is particularly important in animation and anime, where a single production can contain a large number of characters with similar ages or archetypes. Supporting actors may also perform several smaller roles, making vocal differentiation useful for reasons beyond characterization. Casting someone who can transform convincingly between those parts can be more valuable than finding a separate performer for every minor appearance.
An actor considered for one character may also reveal qualities that suit another role better. Auditions are not simply tests that performers either pass or fail. They give casting teams an opportunity to hear what actors bring to the production, and the most appropriate use of a particular voice may not be the role attached to the original audition. What matters at the end of the process is how the complete group of voices functions together.
A New Voice Still Has to Feel Like the Same Character
The unusual challenge of dubbing casting is that the new performer has both freedom and restrictions from the moment the role begins. The character’s appearance, movements and story already exist, and another actor has established a performance that provides a creative foundation. At the same time, simply reproducing the sound of that actor is not enough to create a convincing dub.
The strongest casting choice therefore does not have to be the person capable of producing the closest impression. It needs to be a performer who can understand why the character behaves and sounds the way they do, respond naturally to the completed performance on screen and sustain that interpretation through everything the story asks of them. Voice matching can help preserve the character, but it is only one piece of that larger decision.
Once the cast has been selected, directing, adaptation, recording and editing will continue shaping the localized production. Casting establishes the foundation for all of them. Before audiences can believe that these characters naturally speak another language, someone first has to decide which voices can make that illusion work.