Bob Kane-Loosely based on his real life counterpart. The artist who drew the Batman comic and he took all the credit away from his friend Bill Finger. Cool, calm, collect, cocky, a smartass, fame whore, slacker.
Bill Finger-Loosely based on the real life writer and the true creator of Batman. Bill Finger is pissed at his friend Bob Kane for hogging all the glory of being the creator of Batman when really he did. Annoyed, logical, and wants his share of the credit for creating Batman.
Jerry Robinson-Loosely based on the real life artist and a co-worker of Bob and Bill. Trying not to get involved, a monkey in the middle, a third wheel, the voice of reason.
Stan Lee-Loosely based on the real life writer, he appears for a brief cameo at the end of the sketch.