Characters that are charismatic, unique and engaging can fit into any "arena". Iconic classic characters appeared in different scenarios all the time, and the audience never questioned it. In fact they looked forward to seeing their favorite characters over and over again. What made these characters iconic?
I'll give you my theories. First of all, there is no one quality that makes an iconic character. There are various ingredients that go into it and not each lasting character has all the ingredients.
- The Look - the individual character design
- The Voice
- The Personality
- Character Chemistry With Other Characters
Full explanation with examples here