Those aren't qualities you'd apply to Holly in Capote's story. The late TCM host, Robert Osborne, described Capote's novella Holly as someone who could be "vacant and vapid." But the screenplay adaptation flips the script on the early Audrey Hepburn movie template. In Blake Edwards' BREAKFAST AT TIFFANY'S, she's the young woman who relocates to New York City to reinvent herself. She goes from country caterpillar to big city social butterfly. She seems to be living a fabulous hipstress life in Manhattan but it's really a rootless existence. Although not a hooker, Holly will occasionally go horizontal as sort of a "thank you" to an older visiting businessman to took her out, bought her dinner and gave her "$50 for the powder room" and she will unwittingly pass messages from a drug lord in prison.
Tuesday got a Best Supporting Actress Oscar nomination for 1977's LOOKING FOR MR. GOODBAR. She's great in 1965's THE CINCINNATI KID, 1968's PRETTY POISON, 1970's I WALK THE LINE and 1972's PLAY IT AS IT LAYS to name a few. I really dig her in 1963's SOLDIER IN THE RAIN.
My second choice is an actress who reportedly retired to have a happy family life. She made me happy seeing her on the big screen. Just like Tuesday Weld, Pamela Tiffin was a tasty dish who also had solid acting chops. Billy Wilder loved her way with comedy and cast her in ONE, TWO, THREE with James Cagney, a 1961 release.
Tuesday Weld and Pamela Tiffin -- my two picks as a Holly Golightly if Audrey Hepburn had passed on the project. Who would be your alternate?