Emily Blunt as Rachel Watson

Rebecca Ferguson as Anna Watson

Haley Bennett as Megan Hipwell

Luke Evans as Scott Hipwell

Justin Theroux as Tom Watson

Allison Janney as Detective Sgt. Riley

Lisa Kudrow as Martha

Laura Prepon as Cathy

Edgar Ramírez as Dr. Kamal Abdic

Darren Goldstein as Man in the Suit

Cleta Elaine Ellington as Oyster Bar Woman

Lana Young as Doctor

Rachel Christopher as Woman with Child

Fernando Medina as Pool Player

Gregory Morley as Officer Pete

Mac Tavares as Detective Gaskill

John Norris as Jason

Nathan Shapiro as Meeting Member

Tamiel Paynes as Central Park Drummer Boy

Peter Mayer-Klepchick as Mac

Frank Anello as Field Reporter (uncredited)

Alexander Jameson as Parochial School Kid (uncredited)

Mauricio Ovalle as Conductor (uncredited)

Ross Gibby as David (uncredited)

Guy Sparks as Uniformed NYPD Officer (uncredited)

Hannah Kurczeski as Parochial School Kid (uncredited)

Leilah Marie Giddens as Parochial School Kid (uncredited)

Athena Stuebe as Parochial Student (uncredited)

Sidney Beitz as Train Commuter (uncredited)

Danielle M. Williamson as Student on Bus (uncredited)

Phil Oddo as Train Passenger (uncredited)

Jesse VanDerveer as Parochial Student (uncredited)

Tim Wiencis as Uniformed NYPD Police Officer (uncredited)

Kevin D. McGee as Passenger (uncredited)

Kristina Nichole as Parochial School Kid (uncredited)

Eddie Sellner as Grand Central Commuter (uncredited)

Conor Hovis as Smoking Teen #2 (uncredited)

Doris McCarthy as Businesswoman (uncredited)

Craig Moruzzi as Jungle Gym Boy (uncredited)

Alice Niedermair as Social Worker (uncredited)

Johnny Otto as Officer Martin (uncredited)