Noah Schnapp

Charlie Brown (voice)

Bill Melendez

Snoopy / Woodstock (voice) (archive sound)

Marleik 'Mar Mar' Walker

Franklin Armstrong (voice)

Alex Garfin

Linus Van Pelt (voice)

Hadley Belle Miller

Lucy van Pelt (voice)

Rebecca Bloom

Marcie (voice)

Anastasia Bredikhina

Patty (voice)

Venus Schultheis

Peppermint Patty (voice)

A.J. Tecce

Pigpen (voice)

Mariel Sheets

Sally Brown (voice)

Noah Johnston

Schroeder (voice)

William Wunsch

Shermy (voice)

Madisyn Shipman

Violet Grey (voice)

Kristin Chenoweth

Fifi (voice)