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"Malcolm in the Middle" went off the air back in 2006 -- but today, the entire cast reunited for the first time in six years!

The show's star, Frankie Muniz, has been tweeting up a storm from the reunion, giving us a glimpse at what some of the other cast members look like now.

While we've been glued to Bryan Cranston's performance as Walter White on "Breaking Bad," some of the other stars on the show have stepped away from acting recently.

Frankie, now 26, plays drums for Kingsfoil while one of his TV brothers, Justin Berfield (Reese), is now a producer.

"Had an amazing time seeing all my old friends from "Malcolm" today," Frankie tweeted on Monday. "Realized how much i missed everyone!

Check out the gallery above to see Muniz, Berfield, Cranston, Christopher Masterson, Jane Kaczmarek and even the young twins who played youngest brother James.

Noticeably missing is Erik Per Sullivan, who played Dewey on the show -- but Justin can be seen holding up a recent photo of him in one of the pics!