The protagonist of The Lodger is a show-girl and fashion model.
The protagonist of Blackmail draws a cartoon head on her assailant's easel, to
 which he adds a nude body.  SHE then signs her name to the painting.
Also, for what it's worth, the female spy who is the first to die in The 39
 Steps calls herself an actress.
Hope this helps.  What kind of project are you working on?  Sounds interesting.
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