Final answer:
The Artistic Director is responsible for the overall creative vision of a theatre ensemble, overseeing its entire season and guiding the theatre's artistic output, while the producer handles financial aspects and the stage manager coordinates daily operations.
Step-by-step explanation:
The individual responsible for the overall creative vision of a theatre ensemble and its season of plays is the Artistic Director. This person selects the productions for each season and oversees all artistic projects related to the theatre's activity. Unlike the director, who is focused on the staging and creative concept of an individual production, the Artistic Director has a broader vision that shapes the theatre's entire artistic output. Additionally, the producer handles the financial aspects, allowing artists to maintain creative freedom without becoming entangled in economic discussions. The stage manager takes charge during rehearsals and the running of the show, ensuring smooth day-to-day operation and coordination with the actors.