Noah Wyle nude in ER 3-03 "Don't Ask, Don't Tell"

George Clooney shirtless in ER 15-19 "Old Times"

Scott Grimes and David Lyons shirtless in ER 15-16 "The Beginning Of The End"

David Lyons shirtless in ER 15-15 "The Family Man"

David Lyons shirtless in ER 15-12 "Dream Runner"

David Lyons shirtless in ER 15-08 "Age Of Innocence"

Victor Rasuk and John Stamos shirtless in ER 15-02 "Another Thursday At County"

David Lyons shirtless in ER 15-01 "Life After Death"

David Lyons, Scott Grimes and John Stamos shirtless in ER 14-14 "Owner Of A Broken Heart"

Charles Esten, Leland Orser, J.P. Manoux and Steven Christopher Parker shirtless in ER 14-13 "Atonement"

Steven Christopher Parker shirtless in ER 14-12 "Believe The Unseen"

Leland Orser shirtless in ER 14-09 "Skye's The Limit"

John Stamos shirtless in ER 14-08 "Coming Home"

Mekhi Phifer shirtless in ER 14-03 "Officer Down"

Jesse Garcia shirtless in ER 14-02 "In A Different Light"

Goran Visnjic shirtless in ER 13-22 "Sea Change"

Kip Pardue shirtless in ER 13-14 "Murmurs Of The Heart"

John Stamos shirtless in ER 13-09 "Scoop And Run"

Shawn Hatosy shirtless in ER 13-07 "Jigsaw"

John Stamos shirtless in ER 13-06 "Heart Of The Matter"