Because you like Ben Stone in Knocked Up

Aldous Snow is a rock star who plays hard and parties harder. See them in Get Him to the Greek.

Community-driven but practical, Calvin Palmer is a natural leader even if he doesn't always see it. See them in Barbershop.

Alien insists on taking the party with him wherever he goes. And if you're lucky, you'll get to see his gun collection. See them in Spring Breakers.

Steve Stifler is more than just a dude with a hot mom. He's also rude, profane, and obnoxious. See them in American Pie.

Kumar Patel is always high, always hungry for sliders. See them in Harold & Kumar Go To White Castle.

Seth is short-tempered, crude, and terrible at school, but hopefully there's nothing an epic party can't fix. See them in Superbad.

Amy Townsend rarely wakes up in the same bed twice. See them in Trainwreck.

Barry Egan has too many anger issues to list here. See them in Punch Drunk Love.

David Wooderson has clocked in hundreds of hours cruising around town looking for fun. See them in Dazed and Confused.

While Alan Garner is loyal to his new friends, his efforts to help them often do more harm than good. See them in The Hangover.

Blake Henderson is happiest smoking weed on the roof ‘til the end of time, but the real world just has a way of killing his vibe. See them in Workaholics.

Ben Barber is ready to show you that he's twice the man you think he is. See them in Ride Along.