Linus.

I know Linus and Lucy are siblings, but I didn't know their surnames are van Pelt. Dutch origin? Being the younger brother of Lucy, Linus has suffered a lot. Bullied by Lucy almost in every cartoon strip. His security blanket is the only weapon he carries with him all the time. How not to see him striving for an eternal non-living friend when having a sister like Lucy? It's hard to be released from that comfort zone. Striving to escape from the clutch of his sister, Linus is unusually smart and can be quite philosophical, placing himself at risk with his critical female living companion.

Sibling rivalry is indeed the very critical issue occuring in the van Pelt's family. I just hope that Linus can stop suckling on his thumb one day and grow up to be a fine gentleman, living a healthy life free from his sister's attacks.