Marx Brothers "The Cocoanuts" (1925–1926) and "Animal Crackers" (1928–1929). Playwright George S. Kaufman worked on the last two and helped sharpen the brothers' characterizations. Out of their distinctive costumes, the brothers looked alike, even down to their receding hairlines. Zeppo could pass for a younger Groucho, and played the role of his son in "Horse Feathers". A scene in "Duck Soup" finds Groucho, Harpo, and Chico all appearing in the famous greasepaint eyebrows, mustache, and round glasses while wearing nightcaps. The three are indistinguishable, enabling them to carry off the "mirror scene" perfectly. The stage names of the brothers (except Zeppo) were
Things Which Have Never Yet Been Done (Skyler Wexler) undergoes bone marrow extraction to donate to Cosima in an attempt to cure Cosima's illness. Alison and her husband Donnie (Kristian Bruun) attempt to bury Dr. Aldous Leekie's body, while Helena attempts to escape from the ranch of the Proletheans, a religious extremist group. "Things Which Have Never Yet Been Done" marked the first on-screen appearance of Kathryn Alexandre, who also works on the show as Maslany's "clone double" when filming scenes where multiple clones interact. The episode was filmed at various locations in Toronto and the title was taken from Francis Bacon's work "Novum Organum". It was