Alan is a dead-ringer for a young Gene Wilder

From an interview with Brookes :

Mel Brooks: You know, one of my favorites has a great pause in it. It’s Marty Feldman at the dinner table. It starts, actually, with Dr. Frankenstein saying, “Reputation, reputation!”

He’s so unhappy because his experiment didn’t work. the monster did not come to life. And then Marty Feldman, who plays Igor, he says, “You know, I’ll never forget my old dad. When these things would happen to him, the things he’d say to me.”

And then he didn’t talk. So, you know, we all waited. I don’t know if Marty Feldman as Igor was using the right tempo, taking his time, or simply forgot what had to say next. We waited two minutes! And then Gene said, “What did he say?”

Marty says something like, “What the hell are you doing in the bathroom day and night?! Why don’t you get out of there, give someone else a chance?”

It’s the craziest scene. It was very difficult.