Michael Sheen William Masters Actor Lizzy Caplan Virginia Johnson Actor Caitlin FitzGerald Libby Masters Actor Nicholas D'Agosto Ethan Haas Actor Teddy Sears Dr. Austin Langham Actor Beau Bridges Guest Star Heléne Yorke Guest Star Rose McIver Guest Star Finn Wittrock Guest Star Alan Ruck Guest Star John Pollono Guest Star Allison Janney Guest Star Brian R. Norris Guest Star Shanna Collins Guest Star Micah A. Hauptman Guest Star Michelle Ashford Executive Producer Sarah Timberman Executive Producer Carl Beverly Executive Producer Judith Verno Executive Producer Tim Fywell Director Tyler Bensinger Writer