Nita Talbot
Pretty sure I spotted Nita in her uncredited role.
At about 109 minutes when everyone is singing she's in a 2 shot on the right side of the screen with long straight hair and bangs.
I didn't notice her in Caged, I'll look next time, but did you ever see her in On Dangerous Ground? She's an under aged girl Robert Ryan chases out of a bar. She's very young and very beautiful!
Takes two to tumble it takes two to tango
Speak up don't mumble when you're in the combo