Last week we learned that we'll finally meet the First Children when Scandal Season 3 returns from its winter hiatus, and today the casting for these key roles has been revealed.

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TVLine reports that Fitz and Mellie's children will be played by Dylan Minnette and Madeline Carroll. These two young actors both have experience with ABC hits, since they both made appearances on Lost; Dylan played Jack Shephard's son, while Madeline played young Ben Linus's friend Annie.

Dylan, whose other roles include partying Jason Isaacs's son on the short-lived NBC drama Awake, Holly Hunter's nephew on TNT's Saving Grace, and a young Michael on Prison Break, will play Jerry, the oldest Grant child — slash Fitz's possible half brother (remember how his father raped Mellie? Oh right, who could forget) — who is described as "quiet, smart, and intense."

Madeline will take on the role of "polished, self-assured, and older than her years" Karen. Madeline has had a number of TV and film roles, including a guest role on both Private Practice and Grey's Anatomy. (Dylan also had a guest role on Grey's.)

We can expect to see the kids come to town in Season 3, Episode 15 — and since the season is only 18 episodes long, we're guessing their appearance will usher in a ton of drama.

What do you think of this casting? Let us know in the comments below!

Source: TVLine

Rebecca Martin is an Associate Editor at Wetpaint Entertainment and our resident Game of Thrones, Breaking Bad, and genre TV expert. Follow her on Twitter and Google+!