37476
The film stars Ann Harding , Robert Montgomery , Edward Everett Horton , Edward Arnold , Una Merkel and Charles Richman .
 Ann Harding, Robert Montgomery, Edward Everett Horton, Edward Arnold, Una Merkel, Charles Richman
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Ann Harding, Robert Montgomery, Edward Everett Horton, Edward Arnold, Una Merkel, Charles Richman