When Amy’s parents and Sheldon’s family arrive for the wedding, everybody is focused on making sure all goes according to plan – everyone except the bride and groom.

Brian Posehn, Courtney Henggeler, Jerry O'Connell, John Ross Bowie, Kathy Bates, Kevin Sussman, Lauren Lapkus, Laurie Metcalf, Mark Hamill, Teller, Wil Wheaton