Consider a career in ADR: Automated Dialogue Replacement in a film.

ADR is a process where actors replace dialogue in a film or video. ADR or automated dialog replacement is simply the recording of dialog for a previously shot scene in television or film.

ADR recording generally occurs in a professional studio setting during post production. Although originally ADR referred only to post-production dialog recorded to replace original dialog in a scene, it is now widely used for all dubbing, including previously unrecorded multi-language tracks and background conversations added in post production.

ADR may or may not be provided by the original actors seen in the live action images.