After researching this piece, the main takeaway I have for you all is that Mark Hamill works. Say what you will about the man — and, yes, he does get a lot of hate for being in a metric ton of bad movies and TV since playing Luke Skywalker in Star Wars — but he is out there pounding the pavement. Earning his keep. Keeping the lights on.

My job here is to discuss Hamill’s most iconic characters who aren’t named Luke Skywalker. There were many ways I was considering going about this one when I first sat down to write it. They all hinge on the way we choose to define the term “iconic.”

There’s the mainstream way, which reserves the word for classic characters that stand the test of time. There’s the cult-hit way, which treats the emblem as a zany invitation to experience something off-kilter...