John Cho as David Kim

Michelle La as Margot

Debra Messing as Detective Vick

Joseph Lee as Peter

Sara Sohn as Pamela Nam Kim

Briana McLean as Abigail

Erica Jenkins as Hannah

Connor McRaith as Isaac

Dominic Hoffman as Michael Porter

Ric Sarabia as Randy Cartoff

Steven Michael Eich as Robert

Melissa Disney as Isaac's Mom (voice)

Sean O'Bryan as Radio Jockey

Ben Cain as SVPD Homicide Agent

Alex Jayne Go as Young Margot (5 yrs)

Megan Liu as Young Margot (7 yrs)

Kya Dawn Lau as Young Margot (9 yrs)

Colin Woodell as 911 Operator (voice)

Ashley Edner as Margot's Friend #1 (voice)

Courtney Lauren Cummings as Margot's Friend #2 (voice)

Kenneth Mosley as Margot's Friend #7 (voice)

Miss Benny as Margot's Friend #11 (voice)

Franchesca Maia as Sadie (YouCast)

Thomas Barbusca as Cody (YouCast)

Sylvia Minassian as Mrs. Shahinian (voice)

Bryce Branagan as Diver #1

Katie Rowe as Diver #2

Kristin Herold as Female Anchor

Roy Abramsohn as Male Anchor

Reed Buck as Derek Ellis (voice)

Brad Abrell as News Reporter (voice)

Rasha Goel as Search Reporter

Johnno Wilson as Mike Makowsky

Erin Henriques as Stacy

Gage Biltoft as John Watson

Lasaundra Gibson as Faustine Rea

John Macey as Mr. Lee

Betsy Foldes as SVPD Missing Persons (voice)

Joseph John Schirle as Jonah Emmi (voice)

Julie Nathanson as Natalie Boyd (voice)

Michelle Sparks as News Reporter #4 (voice)

Gabriel D. Angell as Officer Brandon Jackson (uncredited)

Harvey B. Jackson as San Jose PD Sgt Shaw (uncredited)

Anthony Richard Pagliaro as Detective (uncredited)

Rene Michelle Aranda as Emergency Medical Technician (uncredited)