Striking actors who planned on dressing up as Barbie or Ken this Halloween are going to have to rethink their costumes. SAG-AFTRA has issued some strict costume guidelines for celebrating the spooky holiday amid the ongoing strike, and some actors are calling them out. The union is prohibiting actors from dressing up as popular characters from struck content, like the 'Barbie' movie or Netflix's 'Wednesday', and then posting the images on social media.