"Alfred Seguine Kinsey: John Lithgow"

"Sex is a risky game, because if you're not careful, it will cut you wide open."

"[to Alfred Kinsey] You just told me your entire history, but there hasn't been a single mention of love."

"Love is the answer, isn't it? But sex raises a lot of very interesting questions."

"Everybody's sin is nobody's sin, and everybody's crime is no crime at all."

"Dr. Alfred Kinsey: Liam Neeson"

"Clara McMillen: Laura Linney"

"Wardell Pomeroy: Chris O'Donnell"

"Clyde Martin: Peter Sarsgaard"

"Paul Gebhard: Timothy Hutton"