Actor Hagman Smiling After Surgery

J.R. traded his smirk for a smile Thursday.

Larry Hagman was fully awake a day after receiving a new liver in a 15-hour operation.

“He had a smile on his face and was the Larry Hagman we know,” Dr. Leonard Makowka, director of the liver transplant program at CedarsSinai Medical Center, said Thursday.

The former “Dallas” star was still listed in critical condition but had shown no complications from the surgery and his new liver was working, Makowka and hospital spokesman Ron Wise said.