Andre Braugher Dr. Ben Gideon Actor Rubén Blades Dr. Max Cabranes Actor Eric Dane Dr. Wyatt Cooper Actor Russell Hornsby Dr. Aaron Boies Actor Ravi Kapoor Dr. Siddhartha "Sid" Shandar Actor Sophie Keller Actor Hamish Linklater Dr. Bruce Cherry Actor Rhona Mitra Dr. Alejandra "Ollie" Klein Actor Kevin J. O'Connor Actor Jascha Washington Eli Gideon Guest Star Billy Dee Williams Guest Star Christine Healy Guest Star Hedy Burress Guest Star Irene Roseen Guest Star Graham Beckel Guest Star Samantha Lloyd Guest Star Bill O'Brien Guest Star Deborah May Guest Star Bobbin Bergstrom Guest Star Freda Foh Shen Guest Star Paul Attanasio Executive Producer, Writer Katie Jacobs Executive Producer Eric Ellis Overmyer Executive Producer, Writer Samantha Howard Corbin Writer Vanessa Taylor Writer Wendy West Writer Ayanna Floyd Writer Tom Szentgyorgi Writer Kenneth Fink Director Randy Zisk Director Jon Hutman Director Tom Szentgyorgyi Writer Keith Gordon Director John Hutman Director Alex Graves Director Matt Reeves Director Lynne E. Litt Writer Leslie Libman Director