Ginnifer Goodwin as Rachel

Kate Hudson as Darcy

Colin Egglesfield as Dex

John Krasinski as Ethan

Steve Howey as Marcus

Ashley Williams as Claire

Geoff Pierson as Dexter Thaler Sr.

Jill Eikenberry as Bridget Thaler

Jonathan Epstein as Professor Zigman

Leia Thompson as Bridal Consultant

Sarah Baldwin as June

Mark LaMura as Marcus's Dad

Lindsay Ryan as Salesgirl

Kirsten Day as Pretty Brunette

Christopher Peuler as Husband

Herb Lieberz as Cabbie #1

Jimmy Palumbo as Cabbie #2

Mary O'Rourke as Fallen Angel

Marina Hirschfeld as Club Girl

Tim Dunavant as Bartender

Noel Davis Poyner as NYU Law Student

PT Walkley as Lead Singer

Scott Hollingsworth as Band Member

Nicky Kulund as Band Member

Jared Schlemovitz as Band Member

Peyton List as Young Darcy (uncredited)

Sandy Dell as Darcy's Mother (uncredited)

Brian McCormack as Darcy's Father (uncredited)

Daniel Wolfe as Rachel's Friend (uncredited)

Devon Diep as Darcy's Friend (uncredited)

Hannah Templeton-Cox as Friend at Club (uncredited)

Anne Bergstedt Jordanova as Hamptons Club Girl (uncredited)

Melissa Goodwin Shepherd as Bar Patron (uncredited)

Desira Pesta as Kissing Couple in Bar (uncredited)

Gina Hernandez as Drunk Outside Bar (uncredited)

Emily Giffin as Woman on Bench (uncredited)

ViDonna Michaels as Rich Girl (uncredited)

Jeffrey Mowery as Wheelchair Guy (uncredited)

Rosemary Howard as London Pedestrian (uncredited)

Tanzeel Kayani as London Pedestrian (uncredited)