Special Guest Stars Mila Kunis as Vivian Guest Stars Clark Duke as Barry Brooke D'Orsay as Kate Kimberly Williams-Paisley as Gretchen Co Starring Isabella Kai Rice as Kid #5 Sophie Guest as Kid #4 Shiloh Nelson as Kid #6 Blake Bertrand as Kid #1 Shane Roney as Kid #2 Judah Nelson as Kid #3