Final answer:
Each actor must develop a 'distinct' character, meaning notably different and recognizable, which is the correct answer because it has six letters as required by the question.
Step-by-step explanation:
Each actor must develop a distinct character. The term 'character' refers to the qualities assigned to individual figures in the plot of a performance, story, or film. Directors and writers often design characters with specific traits to fulfill various narrative functions and to make the story more engaging for the audience. When actors are tasked with bringing these characters to life on stage or screen, they strive to make each one distinct, or notably different from others, to ensure that they are memorable and contribute to the depth of the narrative.
The reason why 'distinct' is the correct answer and not the other options is because it has six letters, as indicated in the question, and fits the context provided. Unique, dynamic, and versatile are also qualities that an actor may infuse into a character, but they do not fit the specified length required for the answer.