After a particularly grueling day on the set of "The Walking Dead," star Andrew Lincoln went back to a dark, empty house alone and started to feel uneasy.
"It felt like the Munsters' house to me for some reason," he said, "and I started to lock all the doors, even the one to my bedroom, just in case. You know, just in case the apocalypse happens overnight."
The 39-year-old actor isn't known for being squeamish. He plays Georgia deputy Rick Grimes on "Dead" (returning 9 p.m. EST Sunday, AMC). The character is subjected to days and days of zombies, bloodletting and life-or-death decisions after the dead come back to life. Rick is the leader of a band of human survivors trying to find normalcy in a world turned upside down.
When the series returns, Rick and his group face off against a crazed despot simply known as "The Governor" (David Morrisey), who has created an idyllic community, safe from the zombies, though he has an evil agenda behind it all.
"This season has pushed me to the brink in ways I've never been pushed before," said Lincoln, who Americanized his native British accent for the role. "I love that about this season. It's been hard, but it's been so great to play these."
Among Rick's trials this season: his wife dies shortly after childbirth. The scenes have been particularly poignant for Lincoln, who is married and the father of two.
With "Dead" a hit (10 million viewers a week), Lincoln finds new career avenues opening. He's getting movie scripts. He won't, however, do any Rick-like roles.
On a personal level, Lincoln is adjusting to life in the United States, living most of the year near Atlanta, where "Dead" is filmed.
"When I first moved here, I used to be known around the neighborhood as that guy with the funny accent," he said. "Now, I'm known as that guy who runs every morning around the neighborhood. It's nice. It feels like home."
Other highlights for the week of Feb. 10-16 (check local listings):
-- "The 55th Grammy Awards" (8 p.m., CBS). LL Cool J is slated to be the host of the event, broadcast live from Los Angeles. The Lumineers, Mumford & Sons, and Justin Timberlake are set to perform.
-- "Fashion Police" (9 p.m., E!). A special edition gets catty over the red-carpet fashion at the Grammy Awards. Joan Rivers leads the catcalls.
-- "State of the Union Address" (9 p.m., various networks). Live coverage of President Barack Obama's speech before Congress. A Republican response follows.
-- "Zero Hour" (8 p.m., ABC). A paranormal investigator (Anthony Edwards) gets caught up in a conspiracy that stretches back centuries and endangers his wife.