1 Dexter's Laboratory
Dexter's Laboratory is an American comic science fiction animated television series created by Genndy Tartakovsky for Cartoon Network, and the first of the network's Cartoon Cartoons. The show is about a kid scientist named Dexter that has a sister named Dee Dee that keeps breaking into his lab.
Chowder is an American animated television series created by C.H. Greenblatt for Cartoon Network. The series follows an aspiring young child named Chowder and his day-to-day adventures as an apprentice in Chef Mung Daal's catering company.
3 My Life as a Teenage Robot
My Life as a Teenage Robot is an American animated science fantasy television series created by Rob Renzetti for Nickelodeon.
Hostile Makeover would’ve made a good Halloween episode if it was longer and/or it didn’t talk about puberty. Not to mention that it first aired in October.
4 Clarissa Explains It All
Clarissa Explains It All is an American teen sitcom created by Mitchell Kriegman for Nickelodeon. In the series, Clarissa Darling, played by Melissa Joan Hart, is a teenager who addresses the audience directly to describe the things that are happening in her life, dealing with typical adolescent concerns ...read more.
5 The Marvelous Misadventures of Flapjack
The Marvelous Misadventures of Flapjack is an American animated television series created by Thurop Van Orman for Cartoon Network that premiered in North America on June 5, 2008. It stars creator Thurop Van Orman as the voice of Flapjack, a naive young boy who was raised by a whale named Bubbie and ...read more.
That would have been awesome.
6 The Loud House
The Loud House is an American animated television series created by Chris Savino for Nickelodeon. The series revolves around the chaotic suburban everyday life of a boy named Lincoln Loud and his ten sisters, to which he survives as the middle child and only son in a large family of eleven children. ...read more.
It's going to have one this year
7 Star vs. the Forces of Evil
"Star vs. the Forces of Evil" is an American animated television comedy produced by Disney Television Animation for Disney XD. It was created by Daron Nefcy and developed by Jordana Arkin and Dave Wasson. The series follows teenage magical princess from the dimension of Mewni Star Butterfly and her ...read more.
Um what about Hungry Larry?
8 We Bare Bears
An animated comedy show by Daniel Chong about three different species of bears - Grizzly, Panda and Ice bear (polar bear). Since they were little, they wanted to get adopted by owners separately. But then they missed each other too much, so they reunited again. Now as adults, they now live in a cave ...read more.
10 The Nutshack
The Nutshack is an American adult animated sitcom created by Ramon Lopez, and co-created by Jesse Hernandez.
Braceface is a Canadian/American animated series that aired on Teletoon in Canada, and on Disney Channel and ABC Family in the United States, as well as Fox Kids and then Pop Girl in the United Kingdom.
12 Fanboy And Chum Chum
Fanboy & Chum Chum is an American 3D CGI animated television series created by Eric Robles for Nickelodeon. It is based on Fanboy, an animated short created by Robles for Nicktoons and Frederator Studios, which was broadcast August 14, 2009 to July 12, 2014 on Random! Cartoons. The series was first ...read more.
This does have a Halloween episode. - RalphBob