Lupita Nyong'o

as Self - Narrator (voice)

Tyler James Nathan

as Charlie Brown (voice)

Terry McGurrin

as Snoopy (voice)

Isabella Leo

as Lucy (voice)

Holly Gorski

as Marcie (voice)

Hattie Kragten

as Sally (voice)

Isis Moore

as Peppermint Patty (voice)

Wyatt White

as Linus (voice)

Christian Dal Dosso

as Franklin (voice)

Jacob Soley

as Pigpen (voice)

Matthew Mucci

as Schroeder (voice)

Natasha Nathan

as Patty (voice)

Charlie Boyle

as Violet (voice)

Kevin Smith

as Self - Filmmaker

Ira Glass

as Self - This American Llife

Paul Feig

as Self - Filmmaker

Charles M. Schulz

as Self - Creator of Peanuts (archive footage)

Keith L. Williams

as Self - Actor

Drew Barrymore

as Self - Actor, Producer

Miya Cech

as Self - Actor

Paige Braddock

as Self - Cartoonist / Creative Director of Creative Associates

Jean Schulz

as Self - Charles Schulz's Widow

Jennifer Finney Boylan

as Self - Writer

Billie Jean King

as Self - Tennis Champion / Activist

Al Roker

as Self - Journalist

Robb Armstrong

as Self - Cartoonist, Jumpstart

Chip Kidd

as Self - Writer / Graphic Designer

Karen Johnson

as Self - Former Director, Charles M. Schulz Museum

Noah Schnapp

as Self

Lynn Johnston

as Self