Casting rumors electrify fans of HBO's "True Detective' after Matthew McConaughey hinted that he may come back for another season.

In the first season, McConaughey played the role of Rust Cohle, a troubled, but talented detective who carries a large ledger everywhere he goes to keep notes and take crime scene sketches. McConaughey's Cohle is dedicated and is known to get criminals to confess their crimes.

McConaughey hinted that he may be back for another season during an interview with Deadline, an online entertainment portal.

"I read those first two episodes, and the quality was so apparent, and had such an identity to it that even without reading the final six episodes, I felt this was going to be hard to screw up," McConaughey said in the interview. "The voices were so clear, if the writer just stays on this path, it was going to be hard to wreck this train."

He also said that he liked the whole series especially the experience he had when making it. He said in the Deadline interview that he would be open to doing another season with the HBO series.

"I was looking at six months and not beyond that," he told Deadline. "I don't know of a feature film I'd sign for where I'm going to say, 'If this works, you've got me whenever you want me for the next three years.'"

McConaughey noted that in the beginning, he signed up for True Detective to be part of one season only. He said that was how he always saw it when working on similar projects. The actor explained that part of his professional preference is to be given the option to move forward or call it quits without being sucked into a show by virtue of a signed contract.

Casting details of the show's second season are still being finalized, but Nic Pozzolatto, the show's creator, said there will be three leads in the second season.

During a podcast, Pizzolatto said they are working with three potential leads, and also trying to caputure California in a certain scenic attribute similar to what they did in Season 1.

"Not Los Angeles, but some of the much lesser known venues of California. And we're going to try to capture a certain psychosphere ambiance of the place, much like we did in Season 1," Pizzolatto said.