Phoebe-Rae Taylor as Melody Brooks

Rosemarie DeWitt as Diane

Luke Kirby as Chuck

Michael Chernus as Mr. Dimming

Courtney Taylor as Dr. Katherine Ray

Judith Light as Mrs. V.

Emily Mitchell as Penny Brooks

Nylan Parthipan as Carl

Elena Liu Hung as Jill

Abbey Jackson as H4-6 Student

Zander Colbeck-Bhola as H4-6 Student

Pip McCallan as Maria

Sharron Matthews as Mrs. Anastasia Billups

Cristiano Buchanan as Willy

Paulyne Wei as Sue

Maria Nash as Rose Spencer

Gabriela Francis as Jodie Norcroft

Catherine McNally as Principal Antenucci

Kim Huffman as Mrs. Gardner

Shaun Shetty as Carl's Dad

Vicki Kim as Jill's Mom

Leah Black as Impatient Neighbor

Addison Seiler as Halloween Girl

Chloe Seiler as Halloween Girl

Margot Thoma as Halloween Girl / Medi-Talker (voice)

Maya Lee O'Connor as Elena

Gavin MacIver-Wright as Rodney Walsh

Isaiah Rockcliffe as Leon

Mia Burke as Beth

Anabelle Dietl as Bess

Miley Haik as Chloe

Isaak Bailey as Jonah

Ian Ho as Connor Bates

Kate Moyer as Claire West

Janet Porter as Sandrine

Thom Marriott as Shoe Salesman

Lauren Piech as Dr. Hughly

Thomas Ellenson as Waiting Room Patient

Lauren Esdale as Girlfriend of Patient

Lisa Michelle Cornelius as Rose's Mom

Eddie Rubin as Bouncer at Tread

Colleen Reynolds as In Line at Tread

AJ Nadeau as In Line at Tread

Alyssa Goodridge as In Line at Tread

David Klein as Production Assistant

Christian Rose as Paul

Kevin Jubinville as Len Kingsley

Aaron Davis as Woodland Hills Teammate

Lucas Nguyen as Woodland Hills Teammate

Zander Van Nynatten as Perry Valley Teammate

Nicholas Fry as Trevor

Kara Alcorn as Production Assistant 2

Jackie English as Maria's Mom

Jonathan Eliot as Rodney's Dad

Mish Tam as Check-In Agent

Steve Hobbs as Guy in Line at Airport

Jesse Bostick as TSA Agent

Brendan Murray as Gate Agent

Jennifer Aniston as Melody's Inner Voice (voice)

Cherelle Cargill as Additional Voices (voice)

Deborah Rayne as Additional Voices (voice)

Jorge Cordova as Additional Voices (voice)

Tatiana Romero as Additional Voices (voice)

Callum Kelleher as Additional Voices (voice)

Cameron Keitt as Additional Voices (voice)

Sienna Jeffries as Additional Voices (voice)

Joshua Flitter as Additional Voices (voice)

Dennis Kleinman as Additional Voices (voice)

Suri Marrero as Additional Voices (voice)

Allegra Tumbleson as Additional Voices (voice)

Josiah Gaffney as Additional Voices (voice)