Underdog is sweet on ace TV reporter Sweet Polly Purebred, and it is usually her cry of "Oh where, oh where has my Underdog gone?" that prompts the humble and loveable Shoeshine Boy to slip into a nearby phone booth, pop a "Super Vitamin Pill," and emerge as Underdog, champion of justice.

As the group's name suggests, the Teen Titans are a team of teenage superheroes, many of whom have acted as sidekicks to DC's premiere superheroes in the Justice League.

Interestingly, even though transforming into a briefcase is a feature of 21st century cars, there are car parks depicted everywhere.

Fred and Wilma live in the Stone Age town of Bedrock, which serves as the county seat of Cobblestone County, and has a population of only 2,500 people (though it does swell to 30,000 in a dream sequence in the episode "Rip Van Flintstone").

Originally, Tweety was not the cute little canary that we know and love today. He started out as an aggressive, mean-spirited, pink-feathered bird named Orson who tormented two cats based on the popular comedy team Abbot and Costello. Eventually, Tweety's character and look were tweaked, and he was teamed up with Sylvester the Cat in a cartoon entitled "Tweetie Pie". This turned out to be a match made in heaven, and "Tweetie Pie" went on to become the first Warner Brothers cartoon to win an Oscar.

Minnie Mouse was around from the very start, appearing with Mickey in his first film, "Plane Crazy". Patterned after the popular "flapper" girls of the time, Minnie provided a love interest for Mickey to pursue. She did not, however, make the pursuit easy, and when he first tried to kiss her during an airplane flight, she deflected his advances and parachuted to safety!

Originally created by the Belgian cartoonist Peyo, the Smurfs, featuring such characters as Brainy Smurf, Papa Smurf, and Smurfette, were an immediate success and captured the imagination of children across North America. The show went on to win several Emmy Awards before being cancelled in 1990.

When Professor Utonium set out to create the perfect little girl, he brewed up a concoction that included sugar, spice, and everything nice. Then he accidentally added "Chemical X" to the mixture and the Powerpuff Girls were born -- three super-powered girls dedicated to fighting the forces of evil and protecting the citizens of Townsville.

Hawkgirl never appeared in the original Super Friends cartoons, the producers choosing instead to go with such memorable heroes as Apache Chief, Black Vulcan, and El Dorado. However, when the more recent Justice League cartoons came out, Hawkgirl took her rightful place among DC's greatest heroes.

Popeye has a magical a pet called Eugene the Jeep. Eugene lives in a 3 dimensional world but is really a 4 dimensional creature. He answers yes/no questions by bowing down for yes and not bowing down for no. Eugene subsists on a diet of orchids.