My daughter is in the cast of a theatre restaurant that performs mystery plays. While the shows are quite entertaining, the food leaves a lot to be desired. Near the end of the play, each member of the audience submits a form, answering the question. “Who do you think the murderer is and why?”
     “It must be the cook,” wrote one patron. “He tried to poison the rest of us too.”

The expression “in the cast of” means……