Tamara Smart as Kelly Ferguson

Oona Laurence as Liz Lerue

Alessio Scalzotto as Victor Colleti

Indya Moore as Peggy Drood

Tom Felton as The Grand Guignol

Ian Ho as Jacob Zellman

Tamsen McDonough as Mrs. Zellman

Troy Leigh-Anne Johnson as Berna Vincent

Lynn Masako Cheng as Cassie Zhen

Ty Consiglio as Curtis Critter

Ashton Arbab as Tommy

Crystal Balint as Alexa Ferguson

Ricky He as Jesper Huang

Cameron Bancroft as Pete Ferguson

Anisa Harris as Deanna

Kelcey Mawema as Veronica Preston

Isabel Birch as Young Kelly

April Telek as Zellman's Secretary

John Murphy as Mr. Reynolds

Momona Tamada as Babysitter from Japan

José Giménez-Zapiola as Babysitter from Argentina

Mithila Palkar as Babysitter from India

Linden Porco as Toadie

Samantha Schimmer as Student

Eliza Faria as Sophomore Girl

Ben Cockell as Senior #1

Jude Wilson as Senior #2