No information is available at the moment on Roxanne Barkley. She made very few films, although she seemed to have speaking parts in all of them.
Irene (1940) as Helen
A Date with the Falcon (1942) as Jill, the florist
The Falcon Takes Over (1942) as Hat-check girl
George Sanders again.
One thing that was noteable was her impressive scream during a fight scene in this film.