Ben Platt as Self

Crystal Monee Hall as Self / Background Singer

Kojo Littles as Self / Background Singer

Allen Rene Louis as Self / Background Singer

Zoey Deutch as Self

Anna Kendrick as Self

Brittany Snow as Self

Beanie Feldstein as Self

Ryan Murphy as Self

Lucy Boynton as Self

Richard E. Grant as Self

Billy Eichner as Self

Judith Light as Self

Kathryn Gallagher as Self

Marc Platt as Self - Ben Platt's Father

Julie Platt as Self - Ben Platt's Mother

Henry Platt as Self - Ben Platt's Brother

Hannah Platt as Self - Ben Platt's Sister

Samantha Auerbach as Self - Ben Platt's Sister

Avery Rosin as Self

Matthew Krauss as Self

Michael A. Auerbach as Self

Liz Caplan as Self - Ben Platt's Vocal Coach

Steven Levenson as Self

Benj Pasek as Self

Justin Paul as Self

Alex Timbers as Self

Michael Park as Self

Julia Schlaepfer as Self

Benjamin Barrett as Self

Ben Richardson as Self

Ryan J. Haddad as Self

Max Sheldon as Self

Bobby Conte Thornton as Self

Andrew Barth Feldman as Self

Max Hechtman as Self

Meryl Hechtman as Self

Dylan O'Brien as Self

Blake Jenner as Self

Asher Fogle Paul as Self

Kathy Searle as Self

Trevor Eason as Self

Trey Eason as Self

Kyle Krieger as Self

Elizabeth Lail as Self

Nic Rouleau as Self

Luke Islam as Self

Tyler Stanaland as Self

Michael Goddard as Self

Natalie Margolin as Self

Sidi Larbi Cherkaoui as Self

Tony Marion as Self

Javier Morgado as Self

Jason Trojanowski as Self

Kei Tsuruharatani as Self

Anthony Raimondi as Self

Corey Hummerston as Self

Sophie Beren as Self

Melanie Borinstein as Self

Rachel Marley as Self

Ilana Glazer as Self

Sharon Feldstein as Self

Bonnie-Chance Roberts as Self

Anna Romanoff as Self

Charlie Volkman as Self

Daniel Koenig as Self

Hannah Vail as Self

Dori Haller as Self

Carlos E. Lopez-Alvarez as Self

Sarah Kimmerling as Self

Sarah Elizabeth Bergin as Self

Jared Bates as Self

Gigi Shapiro-Kulick as Self

Jonathan Carmel as Self

Adam Mersel as Self

Joe Machota as Self

Miyen Rose Chang as Self

Ron Solis as Self