"The Blacklist" season 2 spoilers hinted redemption for Red although the "deeper truths" about his relationship with Lizzy won't be revealed yet, as are the guest stars, executive producer John Isendrath said.

The showrunner revealed "The Blacklist" season 2 spoilers to TVLine during the Television Critics Association summer press tour.

"I do think that while some of the deeper truths will have to wait because, again, if we're lucky enough to be on the air for a few years you have to be patient," he said.

However, the said the backstory of Red, especially what happened to his family and why he blew up his own house, will be explored this year.

"I think that's a natural next step to sort of exploring not only who he was but really who he is and how he became who he is," he said.

Although the showrunner doesn't mince words when he described Red as a bad guy, but the former government agent will find redemption and "get Liz to love him."

As to the guest stars, the showrunners couldn't reveal much "The Blacklist" season 2 spoilers because they just started to cast the new parts.

"No one has been cast yet...that's why we have a rule that every episode, no matter how serialized...we want the show to be episodic with some serialization. So there has to be a blacklist of every episode who stands on his/her own. And I think that's part of the fun that actors have in coming to do the show. Because it's a great list of villains," he added.

Earlier Megan Boone dished out "The Blacklist" season 2 spoilers to DigitalSpy when she said: "People have very confusing feelings about the relationship. I think that's interesting. People don't even understand what they feel about Reddington (James Spader) and Elizabeth Keen.

"The Blacklist" pre-hiatus finale will reportedly give a "big hook" to tease the audience before the series returns with a "big two-parter" during Super Bowl week.

NBC Entertainment chairman Robert Greenbalt also said that the show will not go back on the 10 p.m. Monday slot even if "State of Affairs" is not doing so well on that time.