The second season of Body of Proof, an American television series created by Christopher Murphey, commenced airing in the United States on September 20, 2011, concluded April 10, 2012, and consisted of 20 episodes. It follows the life and career of Dr. Megan Hunt, a medical examiner, once a neurosurgeon, who now works in Philadelphia's Medical Examiner's office after a car accident ended her neurosurgery career. Along with Hunt solving homicide cases are her colleagues, Nicholas Bishop as Peter Dunlop, Jeri Ryan as Dr. Kate Murphy, John Carroll Lynch and Sonja Sohn as Detective's Bud Morris and Samantha Baker and fellow medical examiners, Geoffrey Arend as Dr. Ethan Gross and Windell Middlebrooks as Dr. Curtis Brumfield. Mary Mouser who plays Megan's daughter Lacey was promoted to "regular" from "recurring" status from season 1. Jeffrey Nordling who plays Megan's ex-husband Todd, Joanna Cassidy who plays her mother Joan and Eric Sheffer Stevens who plays Bill Parkson all reprise their roles, whilst Cliff Curtis, Nathalie Kelley and Jamie Bamber join the show, all of which appear on a "recurring" basis.