Barbara Parkins, who plays literary agent Annie Laurie Williams, originally played "Anne Welles" in the 1967 original version of "Valley of the Dolls."
In a meta reference, during filming of the infamous wig ripping scene in "Valley of the Dolls," Annie Laurie Williams (played by Barbara Parkins) asks where Barbara Parkins is. This is a legitimate question as, in the book, Anne was present in the ladies room when Neely pulled off Helen's wig.