‘Arrested Development’ Season 4 Spoilers: Will Arnett Reveals Guest Cast Members Andy Richter And Conan O'Brien [VIDEO]

Will Arnett broke news about the upcoming return of “Arrested Development” on “Conan” last night. The man behind the magic of Gob Bluth not-so-subtly alluded to Andy Richter and Conan O'Brien would be on the formerly canceled Fox series.

“I don’t want this to be too much of a spoiler alert,” Arnett said before giving away his point entirely. “Let me put it this way: there are a few people on this stage tonight who are a part of it,” the “Arrested Development” star claimed with Richter to his left and O’Brien to his right.

Even though Arnett plays a master of illusions on the acclaimed sitcom, he wasn’t pulling anything over on viewers, or even the alleged guest stars. After he looked back-and-forth between the celebrities, Conan cleared up that a few means more than two.

No specifics were given as to whether Richter and O’Brien will play themselves like actor Carl Weathers does in the series, or join the ranks of Henry Winkler, Liza Minnelli, Scott Baio and others who have portrayed fictitious characters. The spoilers stop abruptly, with the conversation veering in the direction of the returning ensemble cast.

“Arrested Development” will make its triumphant return this upcoming spring when the show is released digitally over Netflix Instant streaming service. The show last aired on Fox in February 2006, but was canceled due to low ratings and the show’s edgy content.

Over the past seven years, the situation comedy about the ridiculous antics of a dysfunctional upper class family has developed a massive cult following. The main cast of the show has featured and introduced many famous actors, like Jason Bateman, Portia de Rossi, Michael Cera, David Cross , Will Arnett, Alia Shawkat, Tony Hale, Jeffrey Tambor and Jessica Walter, along with being narrated by series producer Ron Howard, all of whom are returning to the series, lists IMDB.

The new season is expected to be 13 episodes in length, according to a Rolling Stone interview with Cross, who plays the unknowingly homosexual Tobias Funke, an analyst and therapist - analrapist as he puts it. Splitsider claims that writer/producer Mitch Hurwitz says the new season will be more of an anthology than a serial, “with each episode focusing on a particular character and where they've been since the family fell apart six years ago.”

The season 3 finale left the series with Michael Bluth (Bateman) and his son George Michael (Cera) escaping their selfish family together. Now the two Bluth boys will return to their supposed loved ones in what the cast, crew and fans hope will result in a feature film.

“The episodes are an outgrowth of the design of what we hope will be the movie,” said Hurwitz according to Screen Rant. Gothamist reports that Bateman has said “I know if and when the movie happens there’s been a lot of talk … there are people that have kind of reserved spots in that that would be very exciting.”