What does the acronym TBC stand for in a cast list?

In the context of a cast list, the acronym TBC stands for "To Be Confirmed." This indicates that the role or casting assignment is not yet finalized. It typically suggests that the casting director or production team is still in the process of selecting or securing an actor for that particular part. This terminology is commonly used in theatre and film to communicate that while there is an intention or possibility for an actor to fill the role, it is contingent upon confirmation, which could involve negotiations or scheduling.

The other options represent plausible interpretations of TBC but do not fit the established convention in casting terminology. "To Be Cast" might imply that the role is open and hasn't yet been designated to anyone, while "To Be Considered" suggests that an actor is under consideration for a role but doesn't capture the essence of confirmation. "To Be Completed" doesn't align with typical casting language and could refer to a different aspect of production, such as finalizing a script or set design rather than casting itself.