154987
He worked with some of Hollywood 's best known actors of the time , including Myrna Loy , Joan Crawford , Ethel Barrymore , Roy Rogers , Barbara Stanwyck , Dale Evans , Lionel Barrymore , and Robert Mitchum .
 Joan Crawford, Ethel Barrymore, Roy Rogers, Barbara Stanwyck, Dale Evans, Lionel Barrymore, Robert Mitchum
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Joan Crawford, Ethel Barrymore, Roy Rogers, Barbara Stanwyck, Dale Evans, Lionel Barrymore, Robert Mitchum