It's the Great Pumpkin, Karl Barth.

Robert L. Short in his book 'The Gospel According to Peanuts' pointed out that "Charlie Brown" may have been a cleverly devised literary device for cartoonist Charles Schultz to inject the ideas of the great twentieth century theologian "Karl (Charles) Barth (Brown)."

Since he was one of my heroes, I always secretly hoped that since he was from Minnesota, Schultz was Lutheran, but I think actually he may have belonged to the Church of Christ or something like that.

So what if Schultz wasn't a surrealist! Reformation and Halloween are the same day, so I'm allowed to take a little license. I always felt that Linus was more like Kierkegaard, but Barth's hair is kind of crazy like Linus's is in this picture. Really, Dietrich Bonhoeffer's face and head look more like Charlie Brown, but how can you satirize someone who eas martyred by the NAZI's, I mean, come on, some things are sacred.