Digimon Adventure 02 (2000), also commonly written as Digimon 02/Digimon Zero Two, involves the main enemy the Digi-destined thought they had destroyed in the previous season, but has been putting in practice his evil schemes even after his defeat. In this season, the original Digi-destined grew up into Junior High School students (except for Kari and T.K. who became pre-teens) and could no longer watch over the Digital World and be with their Digimon friends. A new generation of Digi-Destined, composed of three new children named Davis, Yolei and Cody, as well as Kari and T.K. and their digimon Gatomon and Patamon, are given a new kind of digivice known as D3, which allows them to be transported to the Digital World through computers. Three new digimon named Veemon, Hawkmon and Armadillomon joined the group, along with the villain-turned-hero Ken and his digimon Wormmon.
Max Goof and his best friend-neighbor Pete Jr. (PJ) started out as 11-year-olds in the Disney series Goof Troop and became teenagers in the movie A Goofy Movie and its sequel An Extremely Goofy Movie. Max Goof himself has been shown in six different ages in all his appearances.
In Ed Edd n Eddy's episode entitled "Take This Ed and Shove It", all of the characters are shown in their old (90 to 100 years) forms. In the unedited version of the episode, The Kanker Sisters are not shown. Their old selves can only be seen in the deleted scenes of the episode, along with the babies they have with the Eds. It was removed from television broadcast because of its sexual innuendo.
Sonic X, (TMS Enterntainment, 2003), Chris Thorndyke and his friends Helen, Frances, and Danny are shown to be six years older in the 52nd episode - onward (except that Chris's age regresses back to six years earlier (12 years old) in Episode 53, when he visits Sonic and company once again). The character Cosmo also ages to adulthood in Episode 77.
The Powerpuff Girls (Hanna-Barbera/Cartoon Network Studios): The episode "City of Clipsville" had a flashback that featured the girls, as well as the Rowdyruff Boys, as teenagers. The explanation of this being presented as a flashback was that the Powerpuff Girls had sped up time.
Quack Pack (The Walt Disney Company, 1996). This series featured the classic Disney Duck characters (Donald Duck, Daisy Duck, and Huey, Dewey and Louie), though with Huey, Dewey and Louie presented as being teenagers who spoke in conventional (and not duck-like) voices. Several 1950s theatrical Disney shorts, however, were the first to present teenage versions of Donald's nephews.
Sabrina's Secret Life (DiC Entertainment, 2003) originally aired in syndication in 2003 as a spin-off of Sabrina: The Animated Series. In this series, Sabrina Spellman is a teenager (though a year or two younger than her original comic version) attending Greendale High School. Chloe has moved away, and Gem Stone attends a private school far away from Greendale (even though none of them is mentioned in a single episode). Sabrina's new best friend is a girl named Maritza; additionally, Sabrina still has a crush on her friend, Harvey Kinkle.
In Ben 10: Alien Force Ben and his cousin Gwen are five years older (now at fifteen) and Kevin is no longer a villain, and instead works with Ben and Gwen to save the world.
The Legion of Super-Heroes occasionally presented in 1960s stories adventures of the "Adult Legion," stories about the adult versions of the Legionnaires.
The comic strip Funky Winkerbean initially presented its lead characters as teenagers. In the 1990s, however, the strip decided to jump ahead in time and present its characters as young adults some years after high school.
The characters in the comic strip Luann have been continuously aging (approximately one month per reader year) since a character revamp in 1999.
Nightwing features Batman's sidekick Robin (Dick Grayson) as an adult crimefighter.
Sonic the Hedgehog (The Archie Comic) featured a special issue that took place 25 years into the future, featuring older versions of all the characters, including two timelines, one where Sonic married Sally Acorn and became King, the other where Shadow became King instead.
Monica Teen features the characters of Monica's Gang comics as teenagers to 15 years. The plot has a manga-style and the characters also have different characteristics from its original version. The characters were also seen in older versions of the original comic series, but no connection with this spin-off.