Monroe Owsley is here at his oily best. It is sad that he died so very young - he died following a car accident, at the age of 37, his career just starting to take off. We had seen him before, of course (in The Keyhole, which we discussed a bit ago). But here, though just as slimy, he has a more rounded character. You want to see Eddie the way Barbara does at first, but Owsley lets us under his curtain. We see the weakness and the just plain callousness that lies beneath the surface. Here's a scene between the two of them.
Finally, there is Stanwyck herself. Barbara O'Neill is warm and kind, but she doesn't let people walk on her. She tries to be straightforward and honest herself - ultimately, it is Eddie's dishonesty that will be the thorn in their relationship. And Stanwyck can show us the whole of Barbara with merely a glance.
For more information on this film, do visit the TCM article on Stanwyck's Precode Films. Also take a look at this article, which discusses the director of the film - Lionel Barrymore, whose severe arthritis was beginning to affect his career.