starring former child stars melissa joan hart and sean astin. "e.t."xclusively on set where we got a little assist from "mean girls" star, jonathan bennett. >> ding-dong! >> oh, who could be at our pretend house? >> it's me, nick, your long-lost orphan family member. >> you don't look like her. >> i know. it's just kidding. it's jonathan bennett from "entertainment tonight." >> my juice is in the shot. >> everybody say, no good nick! >> no good nick! >> there's a family-friendly mystery unfolding in melissa and sean's "pretend" house, they're foster parents to a teenaged girl who turns out to be a con artist in their new series. >> don't get too atochd to this family. you're not there to make friends. >> you guys are pop culture icons. do i bow around them? you're like the queen. >> you former child actors that we all grew up watching and now you're together on screen playing parents. >> it's funny because even yesterday, we had a moment of, like,, we're the adults on set. we're used to being the kids on set and one day, it just flip flopped. >> i have