Nicki

Emma Watson

Marc

Israel Broussard

Rebecca

Katie Chang

Sam

Taissa Farmiga

Chloe

Claire Julien

Emily

Georgia Rock

Laurie

Leslie Mann

Rob

Carlos Miranda

Ricky

Gavin Rossdale

Shannon

Erin Daniels

Amanda

Halston Sage

Marc's Mom

Stacy Edwards

Henry

G. Mac Brown

Mr. Hall

Marc Coppola

Las Vegas Detective (Female)

Nina Siemaszko

Mrs. Ahn

Janet Song

Kate

Annie Fitzgerald

Police Officer #1 (Nicki's)

Lorenzo Hunt

Police Officer #1 (Marc's)

Timothy Starks

Police Officer #2 (Nicki's)

Rich Ceraulo Ko

Police Officer (Rebecca's)

Joseph Nieves

Police Officer

Joe Nieves

Las Vegas Plainclothes Officer

Nelson Rockford

Adam

Doug DeBeech

Judge

Pat Lentz

la juge Henley

Patricia Lentz

Female TV Reporter #1

Michelle Alegria

Female TV Reporter #2

Stacey Turner

Dogwalker

Brian Gattas

Kid at Party

Logan Miller

Grandma

Marcia Ann Burrs

Male E-Interviewer

Michael Yo

L.A. Detective #1

Marshall Bell

Sarah

Brenda Koo

Beach Girl

Maika Monroe

Drunk Girl

Isabel Lasker

Party Girl

Adea Lennox

Male TMZ Reporter

Keenan Henson

Mrs. Tainer

Rachelle Carson-Begley

Mr. Tainer

Peter Bigler

Water Delivery Guy

Chad Brannon

School Girl's Friend

Zoë Bleu Sidel

Female TV Reporter #3

Cari Champion

Wasted Boy

Bailey Coppola

Rob's Mom

Yolanda Lloyd Delgado

Police Officer Arresting Rob

Linc Hand

L.A. Detective #2

Brett Goodkin

Paris Hilton

Paris Hilton

Bedroom Police Officer #1

Kevin Spencer

Bedroom Police Officer #2

Sean Phillips

Police Officer #3

Bobby Ashhurst

Police Officer #2 (Marc's)

Karl Risinger

School Teacher

Dale Champion

Cinematographer

Christopher Blauvelt

Kirsten Dunst (uncredited)

Kirsten Dunst

Self(archive footage) (uncredited)

Lindsay Lohan