Clark Gregg says that the mystery of Agent Coulson’s un-death will satisfy fans when it is revealed in Agents of S.H.I.E.L.D. season 1, episode 11.

Marvel fans have been clamoring to learn the secret of Agent Coulson’s new lease on life ever since the character was revealed to have survived his brutal death in The Avengers. Now that the long-awaited secret is set to be revealed in Agents of S.H.I.E.L.D. season 1, episode 11, which will air tomorrow night, actor Clark Gregg promises fans that they will not be disappointed by they learn.

“We’re going to get a big fat window at the real truth,” Gregg says in a new interview with Zap2It. “It’s going to be very, very surprising. When I read the sequence, I just stopped and put the script down and went ‘Wow. That was worth waiting for.'”

While Gregg is mum on the nature of those satisfying answers (we here at Hypable have plenty of our own theories) the actor hints that answers behind the mystery will power the second half of Agents of S.H.I.E.L.D.‘s freshman season.

The mystery, he says, “Is an integral part of the bigger reveal, which is that this organization Centipede, run by this person the Clairvoyant, has been part of almost everything we’ve done.” The second half of the season, Gregg promises, is going to be “more exciting and more satisfying than the first half of this season, where so much work had to be done to set up this world of these people and this team.” As that setup pays off, “All these separate pieces get kind of woven together.”

One of those major pieces is the aforementioned Centipede. Though the organization’s exact goals are still somewhat shadowy, it is clear they are trying to produce their own Captain America-esque super soldiers. Clark Gregg takes it further. “[Centipede] is determined to destroy S.H.I.E.L.D.,” he says, and most chillingly, they may not be entirely in the wrong.

“To Coulson’s chagrin,” Gregg says, “[Centipede] has some of the same questions about S.H.I.E.L.D. that Coulson himself is starting to evolve.” The character has clearly changed after being stabbed by Loki, and “is not the same kind of company man that he was in the films.” The difference in Coulson, according to Gregg, “seems to be manifesting in a kind of lack of ruthlessness or a discomfort with some of the kind of pragmatic decisions that people like Victoria Hand… are all too comfortable making.”

Agents of S.H.I.E.L.D. season 1, episode 11, “The Magical Place,” will air tomorrow night at 8:00 p.m. on ABC.

How do you think Agent Coulson survived to star in ‘Agents of S.H.I.E.L.D.’?