Mia Riverton as Twinny

Henry Dittman as James

Illeana Douglas as Miriam

Sung Kang as Kai

Janel Parrish as Hoku

Samantha Quan as Tina

Melissa Puana-Martin as Cori

Chris Taloa as Roy

Kimberly-Rose Wolter as Lily

Chief Sielu Avea as Chief Sielu Avea

Sky Chang as Mahalo Boy

Kelsey Chock as First Kiss Greg

Tarah Driver as 12-year-old Lily

Zoie Driver as Little Lily

Cathy Foy as Bridal Salesperson

Yoko Honjo as Ariko - Bride

Jessika Gabriella Lawrence as Little Lily's Teacher

Tomiko Lee as Mrs. Takitori

Pomai Lopez as Daycare Worker

Luka Lyman as Wife on Plane

Chloe Okimura as Keiki

Billy Minogue as Husband on Plane

Don Nahaku as Twinny's Doctor

Kaili Say as Gina

Tony Silva as Cab Driver

Jeaneen Tang as Waitress

Erika Titus as Little Hoku

Sara Tremmel as Little Twinny

Analei T. Song as Keiki

Mimi E. Wisnosky as Mahalo Mom

Cristina de la Diosa as Ticketing Agent

Garret Sato as Hoku's Dad

Daryl Bonilla as Wedding Guest

Naomi Cooper as Bridesmaid

Christian Franklin as Restaurant Patron

John Fukuda as Aiding Beach Patron #2

Allen Han as Beach Patron

Austin Jose as Aiding Beach Patron

Kepa Kruse as Surfer

Troy Manandic as Airport Traveler

Josh Margulies as Julian

Darcie Mayo as Karaoke Room Extra

Stephen Meyers as Groom

Christina Wildes as Flight Attendant #2