Who are people who were blacklisted from Hollywood?

Sam Wanamaker

From Wikipedia:

"In 1951, Wanamaker made a speech welcoming the return of two of the Hollywood Ten. In 1952, at the height of the McCarthy "Red Scare" period, Wanamaker, who was then acting in the UK, learned that despite his distinguished service in the Army during World War II, his years as a communist could lead to his being blacklisted in Hollywood.[a] He consequently decided to remain in England, where he reestablished his career as a stage and film actor, along with becoming a director and producer.[5] He explained:

In 1950 I went to England to do a play, and around that time the whole McCarthy witch-hunting era had taken hold in Hollywood—so I just stayed in Britain. I knew that because I had worked with actors who had problems in Hollywood, I might have difficulties."

Fatty arbuckle

Apparently Monique has been complaining about her being blacklisted.

Mel Was not blacklisted. He's enjoyed a career since that incident.

Markel is not black listed, she retired from acting.

Roseanne Barr was cancelled and yes, you could say she is now blacklisted given the liability she represents.

bill cosby

Jussie Smollett

Is there a way to find out for real who's blacklisted and who isn't? I mean, all we can go on these days is observation and hearsay.

Alec Baldwin