Just one day after adding Chris Hemsworth and Charlie Day to the cast of their Vacation reboot, New Line Cinema has brought on Skyler Gisondo and Steele Stebbins to play the sons of Rusty Grisworld (Ed Helms).

John Francis Daley, who makes his directorial debut alongside his filmmaking partner Jonathan M. Goldstein, had this to say in a statement about finding these young actors after a nationwide casting search.

"The Griswolds are an iconic movie family and we knew we needed stellar actors to play the kids of the next generation. After a nationwide search, we found them in Skyler Gisondo and Steele Stebbins."

Jonathan M. Goldstein also added the following statement about the new cast members.

"And it also doesn't hurt that their names are Skyler and Steele. Those are pretty badass names."

The plot centers on Rusty, who decides to surprise his wife Debbie (Christina Applegate) and their kids (Skyler Gisondo and Steele Stebbins) with a road-trip vacation to Walley World, America's greatest amusement park, similar to the trip Rusty took in the original Vacation.

We reported in March 2013 that both Chevy Chase and Beverly D'Angelo will reprise their roles as Clark and Ellen Grisworld, Rusty's parents, from the original Vacation franchise, but it isn't known if they are still on board.

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David Dobkin is producing with Chris Bender, although it isn't known when production will begin.

Skyler Gisondo will next be seen in Night at the Museum: Secret of the Tomb. Steele Stebbins most recently starred in A Haunted House 2.