Natalie Portman

(Emma)

Ashton Kutcher

(Adam)

Cary Elwes

(Dr. Metzner)

Kevin Kline

(Alvin)

Lake Bell

(Lucy)

Olivia Thirlby

(Katie)

Greta Gerwig

(Patrice)

Chris "Ludacris" Bridges

(Wallace)

Jake Johnson

(Eli)

Mindy Kaling

(Shira)

Ben Lawson

(Sam)

Ophelia Lovibond

(Vanessa)