When Clooney and Wyle weren’t saving lives at Cook County General Hospital as Dr. Doug Ross and medical student John Carter ...

The actor looks back on his time playing Dr. John Carter on the NBC medical drama and his crossover with 'Friends' During the early days of Noah Wyle's time on ER, he and costar George Clooney also ...

The actor looks back on his time playing Dr. John Carter on the NBC medical drama and his crossover with 'Friends' Fotos International/Getty During the early days of Noah Wyle's time on ER ...

Noah Wyle, second from right, leads the cast of "The Pitt," a new medical series that shoots near the stage where "ER" began. Noah Wyle hadn’t planned on going back to a medical series but ...

During the early days of Noah Wyle's time on ER, he and costar George Clooney also guest-starred in an episode of Friends, making for a very cheeky crossover for the two popular NBC shows.

When Clooney and Wyle weren’t saving lives at Cook County General Hospital as Dr. Doug Ross and medical student John Carter on ER, the two briefly took a break to play doctors on the Friends ...

From left: Jennifer Aniston, Courteney Cox, George Clooney and Noah Wyle on 'Friends' in 1996 ...

During the early days of Noah Wyle's time on ER, he and costar George Clooney also guest-starred in an episode of Friends, making for a very cheeky crossover for the two popular NBC shows. In 1995, ...