Lauren Bacall
I think she, and the oncreen relations betw her charecter and Waynes is one of the best things about this movie. One thing you can say about John
Wayne he was not afraid of working across from strong leading ladies....and the relationship between them serves as a reminder of what he never had in his life.
And its probably the best part she ever got as a mature actress also
It is not our abilities that make us who we are...it is our choices