The Screen Actors Guild, or SAG, is a labor union representing film and television actors in the United States. Founded in 1933, it aims to protect the rights and interests of its members, ensuring fair wages, safe working conditions, and access to benefits. In 2012, SAG merged with the American Federation of Television and Radio Artists (AFTRA) to form the Screen Actors Guild-American Federation of Television and Radio Artists (SAG-AFTRA). This expanded the union's reach to include not only actors but also broadcasters and other media professionals, enhancing their collective bargaining power in the entertainment industry.