Flog has posted a 1997 interview with Bagge where he talks about his then ongoing series Hate and comparisons between Buddy and himself:
Q: Is Buddy Bradley an autobiographical character?
A: I used to tell people that he wasn’t. I mean, he is sort of a younger version of myself, but I think he’s a less well-adjusted version, as well as a more vocal, cantankerous version. One time a year or two ago a magazine asked me to answer a set of questions in Buddy’s voice. It wasn’t until I did this and realized that Buddy’s answers were exactly the same as they would have been if I answered them when I relaized that, yes, I am Buddy Bradley!