Some actors like Charlie Chaplin (anti-war, anti-Nazi and a lefty), Orson Welles (N/A), Paul Robeson (commy and Black rights), Yip Harburg (lefty and Yiddish) and David Hilberman (lead the 1941 Disney strike) left the U.S or went underground to find work after being black listed for questioning the then (in 1947) USSR-phobic, blood thirsty, war-wacky, fascist, monetarist, nuke obsessive and for the most part white supremacist ideals of the time. Laurel (N/A) and Hardy (N/A) were suspected at one point, but the case collapsed since it was so dumb it would be worthy of one of there comedy film plots!