Matt Long Jack McCallister Actor Logan Lerman Robert "Bobby" McCallister Actor Christine Lahti Grace McCallister Actor Edwin Hodge Marcus Ride Actor Jessica Paré Courtney Benedict Actor John Slattery Peter Benedict Actor Bradley Cooper Tom Wexler Graham Guest Star Tom Cavanagh Guest Star Ed Begley Jr. Guest Star Jeanette Brox Guest Star Mike Erwin Guest Star Paul Sorvino Guest Star Lina Patel Guest Star Dean Collins Guest Star Neil Patrick Harris Guest Star Kate Mara Guest Star Cam Gigandet Guest Star Keri Lynn Pratt Missy Belknap Actor Gore Vidal Guest Star Norman Lear Guest Star Greg Berlanti Executive Producer Vanessa Taylor Executive Producer, Writer Mickey Liddell Executive Producer Thomas Schlamme Executive Producer Jonathan Lisco Writer Perry Lang Director Michael Schultz Director David Nutter Director Arvin Brown Director John David Coles Director Peter Markle Director Michael Green Writer David Petrarca Director Marc Guggenheim Writer Erik Oleson Writer Maggie Friedman Writer Barbie Kligman Writer Steven A. Cohen Writer Brad Meltzer Writer