Warren is a stereotypical science nerd who "knows how to be invisible" and loves old and obscure movies and anime. He has a kind and sensitive nature and is highly interested in Max. He always tries to get closer to her but, depending on Max's reactions to his offers and advances, he may end up having to deal with rejection constantly. He's also very shy and insecure with girls and struggles to express and deal with his feelings, so he tries to hide that underneath humor and bad jokes.