SpoilerTV - TV Spoilers

Andrew Lincoln has suggested that season two of The Walking Dead could be even darker in tone.

The actor told E! Online that he is keen to focus on the elements that made the show's initial six-part run a success.

"More sweat, more blood, more tears, more fears - just bring it!" he said. "I think we can go darker and we found that there are strengths to the show and hopefully we can focus on that."

Lincoln, who plays former sheriff's deputy Rick Grimes, previously admitted that he wants new episodes of The Walking Dead to shock viewers.

Lincoln's co-star Sarah Wayne Callies, who plays his on-screen wife Lori Grimes, agreed that the series now has the potential to explore darker territory.

"The success of the show gives us the opportunity to go darker than we have before," she suggested. "[We can] push the envelope, go further and make it even more dangerous."

Furthermore Callies some dropped hints about the show's second season.

The actress told TV Guide that the new 13-part run will focus on the repercussions of Dr. Jenner's whispered words to Rick (Andrew Lincoln).

"Jenner took blood work, and it's possible maybe he told Rick something about what he saw in his wife's blood work," she speculated. "I'm kind of basing that on the comic [on which the show is based]. I don't know."

She added that keeping the secret will put further strain on Rick and Lori's relationship.

"It becomes another secret that Rick is going to keep or not keep," she explained. "[It adds to] the power of what we say to each other and what we hold from one another. I think we all feel the burden of our secrets and we all try to protect each other."

Callies also admitted that she did not expect to win the part of Lori when she originally auditioned.

"I read the script and went in to audition, then I went to my car and started crying," she confessed. "I thought I'd never get this and then they cast me. I've been happy ever since."

Source: digital spy