Jay Baruchel (Steven Karp)Carla Gallo (Lizzie Exley)Charlie Hunnam (Lloyd Haythe)Monica Keena (Rachel Lindquist)Seth Rogen (Ron Garner)Timm Sharp (Marshall Nesbitt)Christina Payano (Tina Ellroy)Loudon Wainwright III (Hal Karp)Jarrett Grode (Perry)Leroy Adams (Adam)Jason Segel (Eric)P.B. Smiley (P.B.)Kevin Rankin (Lucien)Matt McKane (Taint)Amy Poehler (Hillary - Top Floor R.A.)Kevin Hart (Luke)Fred Willard (Professor Duggan)Busy Philipps (Kelly)
Kristofor Brown, Judd Apatow, Brent Forrester, Joel Madison, Lewis Morton, Seth Rogen, Rodney Rothman, Nicholas Stoller, Jenni Konner, Alexandra Rushfield
College freshman Steve Karp, his girlfriend and their fellow dormmates embark on one of the greatest experiences of their lives. Unfortunately for Steve, his lonely and recently divorced father is tagging along for the ride.