. . . blond Mexican female member of the Grandi gang? She's the sidekick of Mercedes McCambridge when she first appears in the film in her leather jacket (preparing the drugs later to be administered to Janet Leigh).
By process of elimination, I reckon it's one of these dames:
Yolanda Bojorquez ... Bobbie
Jennie Dias ... Jackie
Eleanor Dorado ... Lia
Arlene McQuade ... Ginnie
But, which one?
Right? It make it tough to research these things. LOL
shareIt was Mercedes McCambridge, it was mentioned on the extra's section of the DVD.
She was friends with Orson Wells and agreed to appear in this because of there friendship as did Joseph Cotton and Marlene Dietrich.
I've just checked IMDb Trivia section and it was indeed Mercedes McCambridge. I've quoted the full paragraph from IMDb Trivia down below as it might be of interest to his thread:-
(Oscar winner Mercedes McCambridge only appears in this film because she was having lunch with Orson Welles during filming and Welles convinced her to film a scene. He had her wear a leather jacket, cut her hair himself and had her character say the sinister line, "I wanna watch.")