47. Bethany Van Nuys
Showcase Episode: "The Summer Man"
One of the many glittery ladies who flicker in and out of Don Draper's life, Bethany is an aspiring actress who works as a stand-in at the Metropolitan Opera. When she describes her stage routine to Don, she's basically describing his life as well: "I'm a wench, I'm a courtesan, part of a harem. It depends on the opera." She performs a prima donna solo recital on Don in the back of a taxi, marking her man ("What are you doing?" "Making you comfortable") and departing into the night with the words: "To be continued." Way to make an exit, Bethany.