Summer Camp Island is a Cartoon Network animated series which also airs on Cartoon Network. The television series originated from a short pilot, which premiered at Sundance Film Festival as a part of the Animated Shorts category. The series is created by Adventure Time's Julia Pott. 
The series was picked up by Cartoon Network and was scheduled to premiere on July 7, 2018.  A 48-hour uninterrupted marathon aired the entire first season, simultaneously through Cartoon Network and Boomerang. 20 more episodes were scheduled for late 2018, but were delayed and shifted to the second season, and air in 2019. 
Away from their parents, best friends Oscar & Hedgehog must summon all their courage to navigate mysteries and wonders of a magic sleep-away camp where camp counselors are popular girl witches, horses become unicorns, and monsters live under the bed. Not all camps offer the opportunity to swim with a talking shark in the swimming pool, crawl under the bed into a different universe, or make friends with the moon, but on Summer Camp Island, anything can happen.
- Elliott Smith as Oscar (previously Justin Felbinger)
- Oona Laurence as Hedgehog (previously Ashley Boettcher)
- Julia Pott as Susie
- Charlyne Yi as Alice
- Nikki Castillo as Betsy
- Ramone Hamilton as Max (previously Thomas Vaethroeder)
- Naomi Hansen as Pajamas (previously Anna Strupinsky)
- Sam Lavagnino as Pepper, Alien King
- Indie Nameth as Lucy
- Andre Robinson as Oliver
- Alexa Nisenson as Alexa
- Daphne Thomas as Lem
- Richard Kind as Shark (previously Judd Hirsch)
- Mike Birbiglia as Howard
- Fortune Feimster as Ava
- Bobby Moynihan as Mortimer, Melvin, Jimjams
- Alia Shawkat as Blanche
- Kimiko Glenn as Margot
- Cole Sanchez as Freddie
- Melanie Lynskey as Sun
- Cedric the Entertainer as Moon
- Alfred Molina as Monster Under the Bed (previously Judd Hirsch), Andy
- Kathleen Wilhoite as Sue
- Elijah Wood as Saxophone
- Ethan Maher as Puddle
- Caleb McLaughlin as Ghost
- Alia Shawkat as Cinnamon Raisin Toast
- Nat Faxon as Popular Banana Split
- Lesley Nicol as Ramona
- Lorraine Bracco as Werewolf Queen
- During the show's debut in CN Asia, it was aired on January 25th, 2019 as a part of a one hour marathon called "Summer Camp Guide", which featured the episodes "The First Day", "Chocolate Money Badgers", "Saxophone Come Home","Computer Vampire", and “Pepper's Blanket Is Missing”, in that order.
- The following one hour marathon, titled "Camp Activities", which aired on February 22nd, 2019 featured the episodes "Mr. Softball", "Popular Banana Split", "Time Traveling Quick Pants", "The Basketball Liaries", and "Oscar & Hedgehog's Melody", in that order.
- The third one hour marathon, titled "Aliens and Monsters", which aired on March 29th, 2019 featured the episodes "Feeling Spacey", "Monster Babies", "Monster Visit", "Ghost the Boy", and "Hedgehog Werewolf", in that order.
- A fourth one hour marathon, titled "All About Friendship" will air the last five episodes on April 12, 2019 on Cartoon Network and on April 19, 2019 on Cartoon Network HD, and will presumably feature “Ice Cream Headache”, “Pajama Pajimjams”, “Moon Problems”, “It's My Party”, and “Fuzzy Pink Time Babies”.
- The show appears to take place in the late 1990s as shown by several products such as 12 inch vinyl records, CRT screens, and the cars.
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