Frankie Muniz is celebrating his TV familys reunion in the upcoming Malcolm in the Middle reboot.

The actor and racing driver shared a behind-the-scenes photo from the set of the revival, alongside his onscreen brothers Justin Berfield and Christopher Masterson (aka Malcolms older brothers, Reese and Francis).

I was told not to post this yet, but then I remembered the theme song, Muniz wrote. Im just too excited for yall to see the new episodes and I miss my brothers. The caption served as a slight reference to the original Malcolm in the Middle theme song, entitled Boss Of Me from They Might Be Giants, which includes the recurring lyric, Youre not the boss of me now!

When news of the reboot, titled Malcolm in the Middle: Lifes Still Unfair, was announced last December, it was further revealed that Bryan Cranston and Jane Kaczmarek, who portrayed Munizs parents in the series, were returning to reprise their roles. Berfield and Masteron later signed on to take part in the four-episode Disney+ series, while Kiana Madeira joins to portray Malcolms (Muniz) girlfriend.

Vaughan Murrae, Keeley Karsten and Caleb Ellsworth-Clark are also featured in the cast, with the latter actor notably taking over the role of younger brother Dewey, whom Erik Per Sullivan originated.

Cranston recently explained why Sullivan wasnt included in the revival cast list. I talked to Erik and I said, Hey, we got the show! Its gonna come back. He goes, Oh, thats fantastic! And I go, Yeah, so were looking forward to having you back. He goes, Oh, no, no, I dont want to do it. But its fantastic that you are, Cranston said during a June appearance on the Fly on the Wall podcast.

Hes actually going to Harvard, he added of Sullivan. Hes really, really smart, and I think hes getting his masters at Harvard right now. He said, Oh God, no, I havent acted since I was nine or something. So Im not into it.

Malcolm in the Middle ran from 2000-2006, and picked up a total of seven Emmys. While reflecting on what filming the revival meant to him, the shows star Muniz said he loved the experience.

Im not exaggerating when I say filming this reboot, like I loved it so much, way more than I ever thought I could have, he said during a September podcast appearance. I think people will be surprised, in a sense, where everybody is and the story. But its only four episodes Its hard to fit in 20 years of stuff into four 30-minute episodes, right? But I think people are going to be very happy with what they came up with.

Linwood Boomer, the creator of Malcolm in the Middle, is also returning as writer and executive producer. Cranston will also serve as an EP alongside Tracy Katsky of KatCo, Gail Berman, director Ken Kwapis and New Regencys Arnon Milchan, Yariv Milchan and Natalie Lehmann. Jimmy Simons and Laura Delahaye are co-executive producing.