Dorothy Parker
Dorothy Parker was a screenwriter for popular directors in the '30s and '40s. She had a helping hand in some of the best movies out of those decades. She was accused of having ties to communism and had her career completely ruined. In 1949, Parker received a 1,000-word letter, acknowledging her blacklisting for reasons tied to suspicion.
Beyonce
Queen B isn't exactly blacklisted, but two of her songs have been completely banned in China. "Run the World" was deemed too inappropriate by the Chinese government and they have since banned it from existing on any platform. Bey was also barred from entering Malaysia after she refused to comply with the countries strict dress code.