Production has been under way for the past two months on Showtime's Twin Peaks revival series, but as of now, the only cast member the network has confirmed is Kyle MacLachlan as Special Agent Dale Cooper. Over the past few months, numerous rumors and casting reports have surfaced revealing new and returning cast members coming aboard, but nothing official has surfaced from the network quite yet. Today, we have another casting report from Deadline, revealing that Miguel Ferrer has signed on to reprise his role as FBI agent Albert Rosenfield in the revival series.

Miguel Ferrer appeared in eight episodes of the original series as the FBI forensics expert, who often clashed with Twin Peaks sheriff Harry S. Truman (Michael Ontkean). Ironically, a report surfaced last month that revealed Michael Ontkean will not be returning, since he retired from acting several years ago. There has been speculation that the producers may try to re-cast the role. It has been rumored that Robert Forster is being courted to play Truman, but others contend that he may actually be playing a different lawman altogether.

The site also claims that original series stars David Patrick Kelly and Richard Beymer are coming back to reprise their roles as brothers Jerry Horne and Benjamin Horne. Other original cast members rumored to be returning are Mädchen Amick (Shelly Johnson), Sherilyn Fenn (Audrey Horne), Sheryl Lee (Laura Palmer) and Dana Ashbrook (Bobby Brooks). It remains to be seen when and if these actors are confirmed by Showtime, but several of these actors have already been spotted in photos from the set.

Related: Twin Peaks Brings in Ashley Judd

New cast members include Amanda Seyfried, Balthazar Getty, Robert Knepper, Peter Sarsgaard and Jennifer Jason Leigh, although nothing has been revealed about their characters yet. There have been rumors that Amanda Seyfried may be playing the daughter of Dale Cooper and Heather Graham's Annie Blackburn, but that has yet to be confirmed. It isn't known how many more original cast members are slated to come back, and how many new characters have yet to be cast.

Series creators David Lynch and Mark Frost wrote one massive script for the upcoming series. David Lynch is directing the script like one huge movie, and cutting the show into individual episodes in post-production, so we likely won't know how many new episodes Showtime will air for quite some time. Story details have not been released yet, and it isn't known how long principal photography will continue for. Unfortunately, it was recently revealed that the new series won't premiere until the year 2017, after Showtime had initially planned a 2016 debut. Miguel Ferrer currently stars as a series regular on CBS' NCIS.

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