Don Draper (Jon Hamm) tends to get all of Mad Men's glory, but the show's ensemble cast is one of its greatest strengths. Here are some of the best episodes from the rest of the cast.

Betty Frances (neé Draper), "Souvenir" (Season 3, Episode 8)

Fresh off a few rounds of philandering, Don tries to breathe new life into his marriage with Betty (January Jones) with a romantic weekend in Rome. With a stunning hairdo and a dress straight out of La Dolce Vita, Betty makes all the men swoon - and in multiple languages.

Peggy Olsen, "The Suitcase" (Season 4, Episode 7)

"The Suitcase" is a master class in acting between Hamm and Peggy's Elizabeth Moss, but it's also a perfect showcase for Don and Peggy as they wrestle over a pitch. Moss' work is fantastic but it's especially poignant in one line. When Don asks whether she thinks of the child she gave up, she replies: "Playgrounds."

Megan Calvet, "A Little Kiss" (Season 5, Episode 1)

Megan (Jessica Paré) gives Don the ultimate birthday present when she delivers a steaming, slinky, sexy rendition of the French song "Zou Bisou Bisou" in front of all his colleagues. Ooh la la!

Roger Sterling, "Faraway Places" (Season 5, episode 5)

Psychedelic hijinks are afoot when Roger (John Slattery) and his second wife, Jane (Peyton List), take LSD and roll around on the floor. Roger discovers the meaning of life. Their marriage ends.

Joan Harris (neé Holloway), "The Other Woman" (Season 5, Episode 11)

Season 5 was spectacular, especially for Christina Hendricks' Joan, but there was no better showcase for the clashing forces of Joan's ambition and how she's been taught to live life as a woman of the era than in her dealing with an indecent proposal.

Bert Cooper, "Waterloo" (Season 7, episode 7)

Robert Morse was a noted song-and-dance man before his late career turn as eccentric agency co-owner Bert Cooper. His finale number to "The Best Things in Life Are Free" is a perfect send-off for his always weirdly welcome character.

(Courtesy of Buzzfeed)