Harvey T. Birdman of Birdman and the Galaxy Trio, a former superhero, is portrayed as an attorney in Harvey Birdman, Attorney at Law among other cartoon characters from Hanna-Barbera cartoons from the 1960s and 1970s. The majority of Harvey's clients are also made up of characters that were featured in Hanna-Barbera cartoons during the same time period. Many of Birdman's cartoon antagonists who later went on to practice law frequently sided with the other side in a particular case.