Sandra Oh
Dr. Cristina Yang (110 episodes, 2005-2009)
T.R. Knight
Dr. George O'Malley (100 episodes, 2005-2009)
Eric Dane
Dr. Mark Sloan (74 episodes, 2006-2009)
Kate Walsh
Dr. Addison Montgomery-Shepherd / ... (56 episodes
Mark Saul
Dr. Steve Mostow (30 episodes, 2007-2009)
Moe Irvin
Nurse Tyler Christian / ... (24 episodes, 2005-200
Ray Ford
Ray the Paramedic (14 episodes, 2005-2009)
Kali Rocha
Dr. Sydney Heron (8 episodes, 2006-2007)
Ariel Felix
Anesthesiologist / ... (6 episodes, 2005-2008)
John Cappon
John the Paramedic / ... (6 episodes, 2005-2009)
Mac Brandt
Paramedic #3 / ... (4 episodes, 2007-2009)
Tsai Chin
Helen Rubenstein (3 episodes, 2005-2007)
Rob Narita
Anesthesiologist / ... (3 episodes, 2006-2007)
Martin Yu
Anesthesiologist / ... (3 episodes, 2006-2009)
Chad Fish
Anesthesiologist / ... (3 episodes, 2005-2006)
Tim Chiou
Paramedic / ... (3 episodes, 2007-2009)
Tim Daly
Dr. Pete Wilder (2 episodes, 2007)
Billy Wood
Perfectionist / ... (2 episodes, 2005-2007)
Kate Mines
Burke's Nurse / ... (2 episodes, 2006-2007)
Arne Starr
Arne Attending Physician / ... (2 episodes, 2007-2