Summer Camp Island

Oona Laurence

Hedgehog (voice)

Julia Pott

Susie (voice)

Elliott Smith

Oscar (voice)

Ramone Hamilton

Max (voice)

Asher Bishop

Oscar (voice)

Charlyne Yi

Alice / Additional Voices (voice), Alice (voice)

Antonio Raul Garcia

Oscar (voice), Baby Dylan (Alice) (voice)

Indie Nameth

Lucy / Additional Voices (voice), Lucy (voice)

Elijah Wood

Saxophone (voice)

Mike Birbiglia

Howard (voice)

Naomi Hansen

Additional Voices (voice), Pajamas (voice)

Melanie Lynskey

Sun (voice)

Issac Ryan Brown

Max (voice)

Maggie Lowe

Additional Voices (voice)

Keith Szarabajka

Additional Voices (voice)

Alexa Nisenson

Alexa (voice)

Daniel Hagen

Additional Voices (voice)

Richard Kind

Shark (voice), Hedgehog's Dad (voice), Additional Voices (voice)

Nikki Castillo

Betsy (voice), Betsy / Sarah (voice)

Eric Bauza

Additional Voices (voice)

Ethan Maher

Puddle (voice), Dream Boy (Susie) (voice), Additional Voices (voice), Boyband (voice)

Dexter Hobert

Additional Voices (voice)

Luke Lowe

Basketball (voice), Additional Voices (voice)

Caleb McLaughlin

Ghost (voice)

Alfred Molina

Monster Under the Bed / Oscar's Dad (voice), Monster Under the Bed (voice), Andy (voice), Additional Voices (voice)

Kathleen Wilhoite

Sue (voice), Oscar's Mom (voice)

Sam Lavagnino

Alien King (voice), Additional Voices (voice), Pepper (voice), King (voice), Pepper / Alien (voice), Pepper / King (voice)

Nat Faxon

Popular Banana Split (voice)

Andre Robinson

Decent Boi (Hedgehog) (voice), Oliver (voice), Additional Voices (voice)

Brenda Vaccaro

Godmonster (voice)

Lorraine Bracco

Werewolf Queen (voice)

Juju Journey Brener

Additional Voices (voice)

Brian Baumgartner

Storm Cloud (voice)

Rylee Alazraqui

Alien (voice), Additional Voices (voice)

Bobcat Goldthwait

Monk Voice (voice)

Cedric the Entertainer

Additional Voices (voice), Moon (voice)

Lori Petty

Ms. Pinch (voice)

Paula Poundstone

Paulette (voice)

Garrett Davis

Toothpaste (voice)

Kate Flannery

Georgina (voice)

Alia Shawkat

Blanche (voice), Butter Goth (voice), Cinnamon Raisin Toast (voice), Blanche / Werefloer (voice)

Betsy Sodaro

Skadi (voice)

Jane Lynch

Skadi's Mom (voice)

Fortune Feimster

Additional Voices (voice), Mrs. Goose (voice), Vern / Dolly (voice), Dolly (voice), Ava (voice), Ava / Additional Voices (voice)

Don Lake

Additional Voices (voice), Doc Hogsbottom (voice)

Whoopi Goldberg

Barb (voice)

Kimiko Glenn

Margot (voice), Margot / Additional Voices (voice), Additional Voices (voice), Margot / Ski Bat (voice)

Rachel Dratch

Bernadette (voice)

Carol Kane

Barb Jr. (voice)

Wanda Sykes

Ethel (voice)

John Hodgman

Bartholomole (voice)

Kathleen Turner

Mole Judge (voice)

Justin Felbinger

Dungeon Doug (voice)

Bobby Moynihan

Mortimer / Melvin (voice), Jimjams / Additional Voices (voice), Toad Doctor (voice), Tub (voice), Melvin (voice), Mortimer / Melvin / Jimjams (voice), Additional Voices (voice), Toad Doctor / Jimjams (voice), Mortimer (voice), Peach Stand Guy / Additional Voices (voice), Old Log Ghost (voice), Dennis (voice), Jimjams (voice)

Jack Stanton

Additional Voices (voice)

Lesley Nicol

Ramona (voice), Ramona / Additional Voices (voice), Ramona / Mo (voice), Ramona / Emma (voice)

Cooper J. Friedman

Caboodle (voice)

Steve Berg

Harry (voice)

Jo Firestone

Mallory (voice)

Melissa Villaseñor

Psychic (voice)

Bella Ramsey

Ramona Age 15 (voice)

Shen Yao

Additional Voices (voice)

Wallace Shawn

Barry (voice), Pete (voice), Morris Mole (voice)

Stephen Root

Prime Monister (voice), Stuart (voice), Additional Voices (voice), Dean Stuart / Additional Voices (voice)

Keith Ferguson

Additional Voices (voice), Ghost Pendarvis (voice), FM Dog (voice)

Lucian Perez

Glazed Ham (voice)

Ashly Burch

Additional Voices (voice)

Kent Osborne

Chet (voice), Ghost Dad Kent (voice), Additional Voices (voice), Grigory Midnight / Additional Voices (voice), Ghost Dad #1 (voice), Alligator Chef (voice)

Sally Struthers

Additional Voices (voice), Rose (voice)

Jason Maybaum

Fife (voice)

Kevin Michael Richardson

Professor (voice), Yeti Elder (voice), Langston / Waylon (voice), Auctioneer (voice), Toast Ghost (voice), Time (voice), Waylon (voice), Additional Voices (voice)

Laraine Newman

Hedgehog's Mom / Additional Voices (voice), Hedgehog's Mom (voice), Additional Voices (voice)

Loretta Devine

Sea Cow (voice)

Cole Escola

Sea Slug (voice)

Elsie Fisher

Sea Snail (voice)

Scott Hoying

Blobfish (voice)

Kate Micucci

Additional Voices (voice), Accordion (voice)

Roz Ryan

Grandma Tumpet (voice), Tammy / Patrice (voice), Elder (voice), Additional Voices (voice), The Death Cap (voice), Patrice (voice), Tammy (voice)

Frances Conroy

Lead Patrol Elf (voice), Ms. Clearinet (voice)

Eva Victor

Sea Susie (voice)

Fred Melamed

Monk Receptionist (voice), Monk Receptionist / Additional Voices (voice)

Julian Glander

Additional Voices (voice)

Audrey Wasilewski

Red Haired Moom (voice), Yeti Nurse (voice)

Remy Edgerly

Mystical Alien (voice), Noodle (voice), Noodle / Additional Voices (voice)

Keith David

Tummy (voice), Lithophone (voice)

Travis McElroy

Cutie (voice)

Fred Stoller

Ghost the Earnest (voice)

Lorraine Toussaint

Emily Ghost (voice)

Maria Bamford

Toothpaste (voice), Polly (voice), Foghorn (voice), Sandy (voice), The Royal Mush (voice), Puffer Fish (voice)

Lolly Adefope

Snowflake (voice)

Danny Pudi

Cookiesmell (voice)

Bob Balaban

Gerald (voice)

Richard Masur

The Broom Maker (voice)

Doug Benson

Bassoon / Additional Voices (voice), Bassoon (voice)

Dee Bradley Baker

Stair Rabbit (voice)

Niki Yang

Batilda (voice), Additional Voices (voice), Egg (voice), Heather D (voice), Heather D / Rosie (voice), Shortcake (voice)

Aimee Mann

Siren (voice)

Lauren Lapkus

Olf (voice)

Kate Berlant

Striped Horse (voice)

John Early

Bearded Sheep (voice)

Julian Edwards

Pepper (voice), Pepper / Additional Voices (voice), Additional Voices (voice)

Aparna Nancherla

Opie / Agatha (voice), Opie / Additional Voices (voice), Oddjobs (voice), Opie (voice), Additional Voices (voice)

Sunita Mani

Additional Voices (voice), Lucyola (voice)

Ashley Jensen

Miss Mary (voice)

Jeremy Crutchley

Theo (voice), Additional Voices (voice), Frog Musician (voice)

Toks Olagundoye

Additional Voices (voice)

Julian Barratt

Poppawoppa (voice), Sandwich Monk (voice)

Chris Fleming

Professor Q (voice)

Kate Dickie

Professor Elliot (voice)

Vanessa Lee Chester

Nancy (voice), Nancy / Minituni (voice)

Iris Bahr

Mother Mouse (voice)

Tony Curran

Ryan (voice)

Mathieu Szymkowiak

Papa Mouse (voice)

Shirley Henderson

Mum (voice), Additional Voices (voice)

Mia Lynn Bangunan

Kid Mouse 1 (voice), Baklava (voice)

LaTanya Richardson Jackson

Queen Bee (voice)

Yara Shahidi

Beanie (voice)

Mykal-Michelle Harris

Lem (voice), Lem / Additional Voices (voice)

Momona Tamada

Bethie (voice)

Alex Lawther

Mildred's Friend (voice), Mildred's Friend / Additional Voices (voice)

Sacha Dhawan

Miracle Rabbit (voice)

Dylan Alvarado

King (voice), Frog Prince (voice)

Isla Ashworth

Young Mildred (voice)

Laura Dickinson

Additional Voices (voice)

Joanna Lumley

Adult Susie (voice)

Ian Chen

Pale Dog (voice)