Who was related to the search for communists during the red scare?

During the Red Scare, key figures related to the search for communists included Senator Joseph McCarthy, who led aggressive investigations and hearings aimed at exposing alleged communist infiltration in the U.S. government and other institutions. The House Un-American Activities Committee (HUAC) also played a significant role in investigating suspected communists in Hollywood and other sectors. Additionally, the FBI, under the leadership of J. Edgar Hoover, conducted extensive surveillance and investigations into individuals and organizations suspected of communist ties.