Jake Kasdan Director John C. Reilly Dewey Cox Actor Jenna Fischer Darlene Actor Raymond J. Barry Pa Cox Actor Kristen Wiig Edith Cox Actor Tim Meadows Sam Actor Harold Ramis L'Chai'm Actor Margo Martindale Ma Cox Actor Chris Parnell Theo Actor Matt Besser Dave Actor John Michael Higgins Record Producer Actor Conner Rayburn Young Dewey Cox Actor Paul Rudd John Lennon Actor Jason Schwartzman Ringo Starr Actor Justin Long George Harrison Actor Jack White Elvis Presley Actor David Krumholtz Schwartzberg Actor Jack McBrayer DJ Actor Simon Helberg Dreidel L'Chaim Actor Craig Robinson Actor Lyle Lovett Actor Martin Starr Actor Ed Helms Actor Jane Lynch Actor Molly C. Quinn Actor Judd Apatow Producer Clayton Townsend Producer Lewis Morton Executive Producer Michael Andrews Original Music Uta Briesewitz Cinematographer Tara Timpone Film Editing Steve Welch Film Editing Jefferson Sage Production Design Domenic Silvestri Art Director Claudette Didul Set Decoration Debra McGuire Costume Design Amy McIntyre Britt Casting Anya Colloff Casting Dan Bern Original Songs Mike Viola Original Songs Van Dyke Parks Original Songs Marshall Crenshaw Original Songs