Meaning of “cast” - Learner’s Dictionary

cast

noun uk us /kɑːst/
PEOPLE [ group ]

B2 all the actors in a film or play:

The cast are in rehearsal at the moment.
HARD COVER [ C ]

a hard cover used to keep a broken bone in the correct position until it gets better

(Definition of “cast noun” from the Cambridge Learner’s Dictionary © Cambridge University Press)