In the Castle episode “Dead Again,” Castle (Nathan Fillion) and Becket (Stana Katic) try to solve the mystery surrounding a mild-mannered city safety inspector, Alan Masters (Jonathan Silverman). He’s survived two separate poisoning attempts. At the hospital, Castle and Becket interview the resilient victim. Masters’ doctor, Dr. Rebecca Ellins, is present.
Dr. Rebecca Ellins is Marin Hinkle. She’s known for her roles on Madam Secretary (Isabelle), Two and a Half Men (Judith Harper, Alan’s ex-wife), Red Band Society (Caroline Chota), Deception (Samantha Bowers), Don’t Trust the B—- in Apartment 23 (Karen), Brothers & Sisters (Courtney McCallister), and The Sarah Silverman Program (Rose Silverman), among others. Castle airs Mondays at 10pm on ABC.