Linus Van Pelt, or just Linus, is a fictional character in the Peanuts comic strip. Linus is the younger brother of Lucy, who bosses him around. He is the person who hangs out with Charlie Brown the most and the only one who doesn't put him down. Even though Linus is younger than Charlie Brown, he is often the voice of reason.
A popular story theme is Linus' blanket which he still takes with him and that he somehow uses to do things that regular blankets could not do. He also believes in The Great Pumpkin. Sally has a crush on him, but he doesn't show any interest in girls, mirroring real life where boys usually take longer before they start to like girls than girls do to start to like boys. Apart from Charlie Brown, Linus is the only other human character who really hangs out with Snoopy.
In a famous scene from the CBS Christmas special A Charlie Brown Christmas, it's Linus who explains the real meaning of Christmas by quoting from the Gospel of Luke about the story of Jesus. In real life the creator of the Peanuts comic strip, Charles Schulz, said that Linus represented his spiritual side.