mummer vs play-actor

mummer

noun
  • An actor in a pantomime; one who communicates entirely through gesture and facial expression. 

  • A person who dons a disguising costume, as for a parade or a festival. 

verb
  • Synonym of mum (“to act in pantomime or dumb show”) 

play-actor

noun
  • An actor who performs on stage, especially one who is part of an acting troupe. 

How often have the words mummer and play-actor occurred in a corpus of books? (source: Google Ngram Viewer )