Guest Stars Mare Winningham as Diane Mallum Will Chase as Michael Friedman Ray McKinnon as Jerry Mallum Phillipa Soo as Amber Collins Ian Unterman as Jonathan Sackler Brendan Patrick Connor as Howard Udell Raúl Esparza as Paul Mendelson Andrea Frankle as Beth Sackler Lawrence Arancio as Raymond Sackler Jaime Ray Newman as Kathe Sackler Cleopatra Coleman as Grace Pell Jake McDorman as John Brownlee Walter Bobbie as Mortimer Sackler Winsome Brown as Theresa Sackler Alan Campbell as Dr. Paul Goldenheim Linda Powell as Karen Moles Rebecca Wisocky as Cynthia McCormick Kenneth Tigar as Arthur Sackler Adam Grupper as Purdue Lawyer Meagen Fay as Sister Beth Davies Amy Rutberg as Alice Fisher Brian Keane as Curtis Wright Co Starring Deadra Moore as Karen Johnson R. Keith Harris as Martin Willis Andres Erickson as Mortimer D.A. Sackler Morgan Brown as Gregg Wood Alayna Hester as Elizabeth Ann McClung Deja Dee as Stephanie Mountcastle Travis Smith as Eric Miller Paden Fallis as Louis Melton Vince Pisani as David Gauvin Serena Ebhardt as Sue Ella Kobak Van Zee Ray Dooley as Dr. Art Van Zee Anthony Reynolds as Sheriff Kenny Alfonso as Medical Board Administrator Cory Scott Allen as Tim Nicole Burgess as New Sales Rep Michael Silberblatt as Drug User at Bridge Jon Hayden as Senator Chris Dodd Christie Duke as Receptionist Mark Cabus as Senator Kefauver Mary Kraft as Dr. Deborah Leiderman Taylor Simmons as Drug User at House
