Generally, cartoon shows aimed at a wide audience do not include naked characters. They have to adhere to certain standards and regulations to ensure they are suitable for all ages. However, there might be some adult-oriented cartoons that could feature such content, but they are not mainstream.
You won't find many, if any, mainstream cartoon shows with naked characters. The industry is focused on providing entertainment that is appropriate and family-friendly. Any shows that might show something like that would likely be in a very specific and niche category.
There's 'Futurama' where some characters, like the Professor, are bald. Also, in 'American Dad', Stan Smith is sometimes shown without hair.
You should check out 'Justice League'. It showcases many well-known superheroes with superpowers and their adventures to save the world. Another option is 'X-Men', which features mutants with diverse super abilities.
Well, there are quite a few. One example is 'My Little Pony: Friendship is Magic', where some ponies have pink hair.
Well, one such show could be 'Gravity Falls'. Mabel Pines has vibrant red hair and is a beloved character.
One notable cartoon with turtles is 'Turtles Forever', which is entirely focused on turtle characters. Another is 'The Secret Saturdays', where turtles play a role in the adventures. 'Adventure Time' has had turtle-like creatures too.
One such cartoon is 'The Incredibles' where some characters have unique green powers.
There are shows like 'Steven Universe' that have openly represented LGBT characters and storylines. It's been praised for its inclusive approach.
Well, one such show could be 'The Rugrats' where there are sometimes elderly characters making appearances.
That's inappropriate and usually not something that should be shown. Cartoon shows are supposed to be suitable for all ages and such content is against moral and ethical standards.
There are quite a few. 'Monsters, Inc.' is one where the main characters are monsters. Another is 'Hotel Transylvania' which has all sorts of spooky monsters.