Dr. Grace Devlin

Jordana Spiro

Constantine Alexander

William Forsythe

Leoni Franco

James Carpinello

Nurse Rosa "Ro" Quintero

Floriana Lima

Dr. Brett Robinson

Zach Gilford

Dr. Olivia Wilcox

Jaime Lee Kirchner

Dr. Stafford White

Željko Ivanek

Nate Devlin

Jesse Lee Soffer

Daniella Devlin

Wendy Makkena

Guest Star

Michael Rapaport

Titus Amato

Kevin Corrigan

Guest Star

Jennifer Beals

Guest Star

Adam Harrington

Guest Star

David Pasquesi

Guest Star

Mike Starr

Donte Amato

Terry Kinney

Guest Star

Don Schroeder

Guest Star

Shohreh Aghdashloo

Guest Star

Laura Breckenridge

Guest Star

Daniel Ruben

Guest Star

Michael Madsen

Guest Star

Stavos Kazan

Guest Star

Chelcie Ross

Guest Star

Austin Nichols

Guest Star

Brian Goodman

Guest Star

Michael Weaver

Guest Star

Tamara Feldman

Guest Star

Liam Foley

Guest Star

Maxwell Perry Cotton

Guest Star

Patrick Mulvey

Guest Star

Christian Castro

Guest Star

Teddy Cañez

Guest Star

Jurnee Smollett

Guest Star

Kevin J. O'Connor

Guest Star

Lex Medlin

Guest Star

Brendan Hines

Guest Star

Michael Nardelli

Guest Star

Javon Johnson

Guest Star

Lucas Marx

Guest Star

Danica Monroe

Guest Star

Scott Parker

Guest Star

Alexandra Holden

Guest Star

Ajay Mehta

Guest Star

Colin Ford

Guest Star

Shirley Knight

Guest Star

Marieclaire Popernik

Guest Star

Chris Agos

Guest Star

John Benjamin Hickey

Guest Star

Karina Logue

Guest Star

Loren Lazerine

Guest Star

Karin Anglin

Guest Star

Mike Vieau

Guest Star

Derrick Trumbly

Guest Star

Amanda Walsh

Guest Star

Paulina Olszynski

Guest Star

Mark Hines

Guest Star

Kelly O'Sullivan

Guest Star

Linda Powell

Guest Star

Cliff Chamberlain

Guest Star

Alicia Lagano