The keyword phrase "911 cast" functions as a noun phrase. The main part of speech, or the head of the phrase, is the collective noun "cast." The numeral "911" serves as a noun adjunct, which is a noun that functions as an adjective to modify another noun.
In this construction, "cast" refers to a group of actors. The term "911," a proper noun representing the title of a specific television series, modifies "cast" to specify which particular group of actors is being discussed. It answers the question "Which cast?" This grammatical structure is common in English, where one noun is used to give more specific information about another, such as in "police car" or "kitchen table." Here, "911" provides the specific context for the noun "cast."
For the purpose of writing an article, treating "911 cast" as a noun phrase means the content should focus on the entity it represents: the group of people who act in the show. The article's subject matter would involve describing, analyzing, or providing information about these individuals, their roles, and their collective work. The phrase would function as a subject or object within sentences, centering the article on the actors themselves rather than an action (verb) or a descriptive quality (adjective).
