Colin Farrell

Character: David

Margot Robbie

Character: Sarah

Jennifer Grant

Character: David's Mother

Hamish Linklater

Character: David's Father

Phoebe Waller-Bridge

Character: Female Cashier

Kevin Kline

Character: The Mechanic

Jodie Turner-Smith

Character: GPS (voice)

Lily Rabe

Character: Sarah's Mother

Billy Magnussen

Character: The Man

Chloe East

Character: Cheryl

Lucy Thomas

Character: Amanda

Sarah Gadon

Character: The Woman

Brandon Perea

Character: Mike

Calahan Skogman

Character: Sarah's Groomsman

Jacqueline Novak

Character: Stacy Dunn

Michelle Mao

Character: Smitty

Jason Kravits

Character: Mr. Nelson

Shelby Simmons

Character: Stage Manager

Simon Khan

Character: Tate Chandler

Yuvi Hecht

Character: Young David

Mike Meldman

Character: Father of the Bride

Pablo Soriano

Character: Vincent

Galen Hooks

Character: Choreographer

Brooke Maroon

Character: Amy Moore

Julian Zane

Character: Eddie Bora

Liz Jenkins

Character: Another Mother

Gabriella Surodjawan

Character: Miss Jones

Joyce Guy

Character: Doctor Vernon

Karah Donovan

Character: Nurse

Mia-Carina Mollicone

Character: Hotel Receptionist

Aaron Quini

Character: Student Performer

Carissa Rae Martin

Character: Student Performer

Jarvis Langster

Character: Student Performer

John Arthur Mays

Character: Student Performer

Kayla LaVine

Character: Student Performer

Mariah Spears

Character: Student Performer

Phi VoBa

Character: Student Performer

Danielle Kennedy

Character: Old Woman (uncredited)

Floriane Andersen

Character: Officiant (uncredited)

Bernadette Balagtas

Character: Nan (uncredited)

Kyle Burnett

Character: Groomsman (uncredited)

Jacob John Caldwell

Character: Clarinet Player (uncredited)

Greg Collins

Character: Parent (uncredited)

Vince Corea

Character: Student (uncredited)

Nadia Dawn

Character: Wedding Guest (uncredited)

Taylor Deetz

Character: Student (uncredited)

Mike Hartsfield

Character: Concerned Parent (uncredited)

Ksenie Kolbas

Character: Groomsman Girl (uncredited)

Erik Lunseth

Character: Dr. Johnson (uncredited)

Marion Maclou

Character: Student (uncredited)

Ronnie J. Salazar

Character: Theatre Audience (uncredited)

Susan Elizabeth Shaw

Character: Bridesmaid (uncredited)

Thomas Spaeter

Character: Concert Guest (uncredited)

Ara Storm

Character: Student (uncredited)

London Stubblefield

Character: Parent (uncredited)

Neil Wachs

Character: Parent (uncredited)

Jennifer Woods

Character: Wedding Guest (uncredited)

Michael Sullivan

Character: Parent (uncredited)