United Kingdom, Sept. 3 -- Frankie Muniz thinks fans will be "surprised" by the Malcolm In The Middle revival.

The beloved 2000s sitcom is returning for a sequel series, and Frankie - who is reprising the title role for the revival - admitted while it's tough to bring people up to speed on two decades of off-screen developments, he's sure viewers will be satisfied with the new direction.

He told the Lightweights podcast: "I think people will be surprised, in a sense, where everybody is and the story.

"It's 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."

The 39-year-old actor described working on the revival as "the best time of [his] en...