What is principal actor casting?

The "principal actor" is the same as "lead actor". This would be an actor who has a major role in the movie versus a supporting actor or an extra. An example would be Johnny Depp as Captan Jack Sparrow in Pirates of the Caribbean versus Geoffrey Rush as Captain Barbossa.
The "principal actor" is the same as "lead actor". This would be an actor who has a major role in the movie versus a supporting actor or an extra. An example would be Johnny Depp as Captan Jack Sparrow in Pirates of the Caribbean versus Geoffrey Rush as Captain Barbossa.