"ER" continues to find ways to captivate its audience, as more than 11 million viewers turned in for Season 13.

This season, Dr. Tony Gates (John Stamos) returns to the ER, now as an intern, with a straightforward attitude and a complicated personal life. He is Dr. Gallant's opposite: brash, cocksure, with a bad-boy past, and maybe the right prescription for Neela's (Parminder Nagra) broken heart.
 
Further shaking up the ER, Weaver (Laura Innes) decides to leave County General for a career move you wouldn't expect. And the profound dramas of the outside world continue to make their way to the ER, including a hostile patient whose real condition is a secret even to himself, homeless children who escape to a magic world of their own making, and a Christmas miracle. 

Then again, miracles happen every day at County General.

See more photos from "E.R." here!