Though Kyle MacLachlan has since starred in other cult series, even when he was Charlotte's impotent husband on Sex and the City and a murderer on Desperate Housewives, he'll always be known as Special Agent Dale Cooper, a man never too far away from a slice of cherry pie or cup of strong, black joe. (No word yet on whether Diane will be returning, too.)
Death be damned, Laura Palmer is coming back with a bang by starring in all 18 episodes of the new series—that is, unless Sheryl Lee, whose first post-Peaks role was Salome opposite Al Pacino, and who has since showed up in Winter's Bone and Woody Allen's Café Society, is simply reprising her role as Laura's suspiciously identical cousin, Maddy.
Dana Ashbrook has kept up acting with a steady roster of smaller films, including 2012's The Agression Scale with Ray Wise, aka Leland Palmer, and more than a few appearances on Dawson's Creek, presumably making him more than up to the job in reprising his role as the annoying ultimate bad boy Bobby Briggs—even now that his hair's gone gray.
Though she's now a long way from a schoolgirl, the ever flirtatious Audrey Horne may have a chance at getting together with Coop after all, especially since actress Sherilyn Fenn has been keeping up her acting chops on shows like Gilmore Girls and Shameless (not to mention appearing on the cover of Playboy in the '90s).
At 70, Peggy Lipton scarcely seems to have aged since she last played Norma Jennings, the owner of the Double R Diner, though she has since raised another actress, her daughter Rashida Jones.
Richard Beymer's eyes seem only bluer than ever since the now 79-year-old actor last turned up as Benjamin Horne, Audrey's father and the owner of the Great Northern Hotel (not to mention an appearance in West Side Story, which helped to earn him a Golden Globe for New Star of the Year that he shared with Warren Beatty). Not that viewers have been able to appreciate them: Twin Peaks is only Beymer's fourth on-screen appearance so far in the 2000s.
From blue streaks to twin top knots, Kimmy Robertson seems to have as much appreciation for an out-there hairdo as Lucy Moran, her curly-haired secretary in the sheriff's office. Robertson has since lent her high-pitched voice to shows like Batman and The Simpsons, plus appeared onscreen on an episode of Drake & Josh—all good practice for appearing on all 18 episodes this season.
Like Leland Palmer, Laura's potentially murderous father, actor Ray Wise has since gone gray, a new look he's shown off in shows like Mad Men, Fresh Off the Boat, Gilmore Girls, 24, and How I Met Your Mother. That's range.
Another face who'll be showing up in the full series, Mädchen Amick has lately turned up on Riverdale, plus a host of cult shows like Mad Men, Gossip Girl, ER, Gilmore Girls, and Dawson's Creek. Fortunately for her character, the waitress Shelley Johnson, though, her abusive husband Leo won't be back.
Since playing Deputy Hawk, one of the most reasoned voices in the sheriff's office, Michael Horse has gone on to not only appear in shows like Malcolm in the Middle, but pick up a full-on artistic career as a jeweler and painter.
Though Michael Ontkean has maintained his curly head of locks since starring as Sheriff Harry S. Truman, the actor, who last showed up in The Descendants in 2011, has decided to leave Coop hanging and won't be returning to Twin Peaks.
Lara Flynn Boyle won't be returning to this season but she'll always live on as Donna Hayward, Laura's best friend of sorts who was never short on spectacular sweaters.
Russ Tamblyn's daughter Amber has since gone on to become an actor and even director herself, but Tamblyn has kept up an acting career of his own since playing the ever eccentrically-outfitted psychiatrist Dr. Lawrence Jacoby, recently picking up roles in films like Django Unchained.
Like the actor who plays fellow bad boy Bobby Briggs, James Marshall, aka James Hurley, Big Ed's nephew who can't get enough of riding his bike, has also gone gray, but still showed up on-screen with a few films and an appearance on CSI.
Like her on-screen daughter, Laura, the grief-stricken Sarah Palmer will be returning for all 18 episodes, although actor Grace Zabriskie has turned up in shows like Charmed and Big Love.
Fittingly, like her beau Sheriff Harry S. Truman, sawmill owner Josie Packard won't be returning to the series—like fellow mill worker Piper Laurie, aka Catherine Martell, David Lynch apparently never asked her back. But actor Joan Chen has been looking young as ever lately in shows like Netflix's Marco Polo.