Ask someone what the greatest interview program is and you’ll get a lot of different answers. Some people like Larry King Live. Some might go for The Late Show with David Letterman. For some reason, people seem to like The View. They’re all wrong. The greatest interview program in existence is called Between Two Ferns With Zach Galifianakis.

In the latest installment Zach has scored a pretty big guest. Sean Penn stops by to chat about what he’s up to. Unfortunately Zach couldn’t be there because he's away at adult fat camp, so his twin brother Seth steps into handle interviewing duties. Seth, by the way, is the answer to the question: What’s under Zach Galifianakis’s beard? His southern twin brother Seth is.

Here’s Seth interviewing Sean Penn, who it seems also has a twin brother, named Ballpoint: