I’m not sure if Myrna Loy (1905-1993) ever gave a great performance. She shares a great “welcome home” scene with Fredric March in The Best Years of Our Lives (‘46), and is dryly amusing in a somewhat stiff-necked way in The Bachelor and the Bobby Soxer (‘47). But she was certainly in full command of a sexy exotic vibe in her late 20s and early 30s. She also gave great vibe in the Thin Man series.
Previously unreported fact: I stood five feet from the still curiously radiant Loy at a National Board of Review awards ceremony in late ‘81 or early ‘82. Ragtime costar James Cagney was also there; ditto Warren Beatty, who said something flattering about Loy — something about her beauty still making his pulse race a bit.