Sure is. Joker is a comic book movie that delves deep into the psyche of the iconic character, offering a unique and compelling take that stays true to the comic book roots.
There are many great Joker comic book stories. For instance, in 'Emperor Joker', the Joker gets god - like powers and uses them to create a world of chaos. This story really shows the extreme of what the Joker could do if he had unlimited power. It's a wild ride through a world that is turned upside down by the Joker's warped sense of humor and his thirst for chaos. In other stories, we often see his battles with Batman which are always full of psychological twists and turns as the two characters are polar opposites in many ways.
The main character is obviously the Joker himself. He is the chaotic and unpredictable force. Batman is also a main character in most of the Joker - related comic book stories as he is the Joker's nemesis. Commissioner Gordon often plays an important role too, especially in stories where the Joker targets Gotham City.
Another great one is 'A Death in the Family'. The Joker killed Robin (Jason Todd) in this story, which had a huge impact on Batman and the entire Batman universe. It was a very tragic and memorable story.
In most versions, Joker doesn't seem to have that awareness. His focus is on causing mayhem and chaos without considering the meta aspect of being in a comic book. It's part of what makes his character so wild and unhinged.
The comic book Joker is quite old. He made his debut in the 1940s and has remained a popular and enduring character since then. His age in the comic book universe is difficult to pin down exactly, but he's been a staple for decades.