In the stage production of beauty and the beast, why would the costume designer need to work with the special effects crew? the costume designer would have to be sure that the fabric of actors’ costumes didn’t get caught in one of the mechanical special effects. a specific character’s costume required the occasional use of fire onstage, so the costume designer and special effects crew would have to work together to design that costume. the special effects crew would be interested in the costume design process. the costume designer would be interested in the process of creating special effects.