But... that's the same girl who played Olivia in Season 1 (who is 22, irl). The middle sister, the one who is waiting for Ben when he gets to the restaurant, hasn't been named, and I can't find any credit for her on IMDB. Olivia and Wade (and Lila) all show up after middle sister and Ben have been seated. It's a little confusing because he "doesn't know" Olivia is coming, when in a previous scene we assume he's talking to Olivia on the phone & she's the one setting him up. But he only says "my sister" wants to meet for dinner :/