Riven

Cristin Milioti

as Grace

Delaney Quinn

as Freddy

Topher Grace

as Ben

Keegan-Michael Key

as Buddy the Unicorn (voice)

Michael Shannon

as Willie (voice)

Patton Oswalt

as Strappy (voice)

Clint Howard

as George

Eric Bauza

as Mr. Mailbox / Worry Well / Couchy / Trashy / Pee Flower (voice)

Sergey Zhuravsky

as Buddy the Unicorn (suit)

Jonathan Yurco

as Dark Buddy (suit)

Devon Hawkes Ludlow

as Charlie the Train (voice)

Jimmica Collins

as Betty Bunny (voice)

Madison Polan

as Hannah

Bryson JonSteele

as Derek

Seamus Flynn

as Timothy

Bennie Taylor

as Mailman Miles

Cedwan Hooks

as Betty Bunny (suit)

Mark Aaron Buerkle

as Therapist (Day Player)

Phuong Kubacki

as Nurse Nancy

Luke Speakman

as Josh

Tristan Borders

as Oliver

Caleb Williams

as Wade

Conner Stumm

as Mailman Justin

Eric Salazar

as Grilling Man

Lynette Eklund

as Puppeteer

Tory J. Malone

as Tyler

Brooke Bloom

as Dr. Deborah Burr

Rachel Appelbaum

as Clocky / Mr. Mailbox (uncredited)

Frank Brown Jr.

as Father (uncredited)

Noah Pierre D.

as Jakson (uncredited)

Casper Kelly

Director

Tyler Davidson

Producer

Casper Kelly

Writer

Jamie King

Writer

J.D. Lifshitz

Producer

Raphael Margules

Producer

Drew Sykes

Producer

Zach Kuperstein

Director of Photography

Josh Ethier

Editor

Michael Yezerski

Original Music Composer

Tracy Rosenblum

Producer

Kevin Flanigan

Executive Producer

Dexter Braff

Executive Producer

Roberto Linck

Executive Producer

Emilio Schenker

Executive Producer

Gideon Tadmor

Executive Producer

Adam J. Wilde

Executive Producer

Marlowe Taylor

Sound Mixer

Mac Smith

Sound Designer

Mac Smith

Supervising Sound Editor

Tony Villaflor

Sound Re-Recording Mixer

Anna Kathleen

Production Design

Shawn Coleman

Songs

Casper Kelly

Executive Producer

Ryan J. Kelly

Executive Producer

Jamie King

Executive Producer

Nathan McAuley

Executive Producer

Geoff Yaw

Executive Producer

Jamie Buckner

Co-Executive Producer

Gary Martyn

Co-Producer

Katie Sanders

Co-Producer

Tyler Smith

Line Producer

Kira Weiss

Co-Producer

Alyson E. Winick

Co-Executive Producer

Chelsea Ellis Bloch

Casting

Marisol Roncali

Casting

Vince Calabrese

Art Direction

Teresa Strebler

Set Decoration

Shawna-Nova Foley

Costume Design