Steven
Zach Callison
Garnet
Estelle
Pearl (voice)
Deedee Magno
Amethyst
Michaela Dietz
Jasper/Malachite
Kimberly Brooks
Connie Maheswaran (Voice)
Grace Rolek
Vidalia
Jackie Buscarino
Mr. Smiley
Colton Dunn
Uncle Grandpa
Pete Browngardt
Dr. Priyanka Maheswaran/Doctor 2
Mary Elizabeth McGlynn
Rose Quartz
Susan Egan
Sardonyx
Alexia Khadime
Buck Dewey
Lamar Abrams
Sapphire
Erica Luttrell
Jenny
Reagan Gomez
Lapis Lazuli/Malachite
Jennifer Paz
Belly Bag/Narrator
Eric Bauza
Lars Barriga (voice)
Matthew Moy
Sadie Miller
Kate Micucci
Ruby
Charlyne Yi
Peridot
Shelby Rabara
Pizza Steve
Adam DeVine
Sugilite
Nicki Minaj
Mr. Fryman
Billy Merritt
Jamie/Sailor/Audience
Eugene Cordero
Mayor Bill Dewey
Joel Hodgson
Mr. Gus
Kevin Michael Richardson
Yellow Diamond / Yellow Diamond (voice)
Patti LuPone
Nanefua
Toks Olagundoye
Blue Diamond / Blue Diamond (voice)
Lisa Hannigan
Ronaldo Fryman
Zachary Steel
Lion/Dolphins
Dee Bradley Baker
Sour Cream
Brian Posehn
Pop Singer
Olivia Olson
Peedee Fryman
Atticus Shaffer
Kevin (Voice)
Andrew Kishino
Greg Universe
Tom Scharpling
Bismuth
Uzo Aduba
Zach Steel*
Andy DeMayo (Voice)
Dave Willis
Barb Miller
Kate Flannery
Marty
Jon Wurster
Young Ronaldo / Lighthouse (voice)
Braden Fitzgerald
Li'l Butler (voice)
Eric Bell Jr.
Young Lars / Lighthouse (voice)
Mason Cook
White Pearl / White Diamond (voice)
Christine Ebersole
Stevonnie (voice)
AJ Michalka
Sunstone (voice)
Shoniqua Shandai
Emerald (voice)
Jinkx Monsoon
Rainbow Quartz 2.0 (voice)
Alastair Ferrie