58

John Stamos

as Tony Gates

61

George Clooney

as Doug Ross

63

Angela Bassett

as Dr. Cate Banfield

46

Linda Cardellini

as Samantha Taggart

58

Ming-Na Wen

as Jing-Mei-Chen

43

Shane West

as Ray Barnett

55

Michael Michele

as Cleo Finch

59

Alex Kingston

as Elizabeth Corday

46

Kellie Martin

as Lucy Knight

55

Maria Bello

as Anna Del Amico

47

Mekhi Phifer

as Gregory Pratt

55

Julianna Margulies

as Carol Hathaway

50

Noah Wyle

as John Carter

59

Anthony Edwards

as Mark Greene

49

Goran Visnjic

as Luka Kovac

46

Parminder Nagra

as Neela Rasgotra

57

Maura Tierney

as Abby Lockhart

50

Scott Grimes

as Archie Morris

54

Sherry Stringfield

as Susan Lewis

47

Sharif Atkins

as Michael Gallant

59

Eriq Lasalle

as Peter Benton

57

Gloria Reuben

as Jeanie Boulet

64

Laura Innes

as Kerry Weaver

49

Sumalee Montano

as Duvata Mahal

61

Paul McCrane

as Robert Romano

About ER

About

22-time Emmy Award-winning show about the doctors and nurses at Chicago's County General Hospital. The show ran for 15 seasons and aired a total of 331 episodes. 

Trivia

The series was created by Michael Crichton. The series won seven Primetime Emmy Awards during its run.