Yakity Yak- a show on Nickelodeon during the past years, but was cancelled during the 2005 year. This show was only on for a short time, so it may be unheard of. There is also an anime called "Ys".
Alice in wonderland
Lazy Town
There's a cartoon stating with "n" called Naruto....
Lazy Town
Yogi Bear and Yosemite Sam are cartoon characters. They begin with the letter Y
Jerry the mouse.
Elmer Fudd ,
The Jetsons
Dick Dastardly
Naruto
Charlie Brown in the Peanuts cartoon
Lisa Simpson