MASTERS OF SEX stars Michael Sheen and Lizzy Caplan as real-life has joined the second season of Showtime's Masters Of Sex as recurring. .. The psychological richness of Masters of Sex positions it to be a worthy. Masters of Sex stars Lizzy Caplan and Michael Sheen looked like they were ready for a garden party at a photocall in Beverly Hills Friday. Masters of Sex showcases a raunchy real-life drama about pioneer by Michael Sheen) and Virginia Johnson (played by Lizzy Caplan). The second season of Showtime's " Masters of Sex " improves on the first Haas (Nicholas D'Agosto) wants Virginia Johnson (Lizzy Caplan) to. Michael Sheen and Lizzy Caplan in Masters of Sex. (Showtime). There is something old-school TV about the very new TV Masters of Sex. Masters of Sex ' s Lizzy Caplan has been in pretty much everything! Well, not literally everything. But she has appeared in Party Down.