Rintarou Okabe (岡部 倫太郎)

Age: 18
Birthday: December 14
Height: 177 cm (5'10")
Weight: 60 kg

Okabe Rintarou is the main protagonist of Steins;Gate. He is a first year student attending Tokyo Denki University, and calls himself a Crazy Mad Scientist. He acts like a villain, but is rather immature as he frequently shows traits of Chunibyou (中二病) syndrome despite being a grown-up man. After enrolling in university, he went to Akihabara to open up a laboratory called the "Future Gadget Research Establishment," where he invents gadgets that are rather useless. He also talks to himself on the cellphone, his words not making much sense. Supposedly, he has very few friends that can understand what he's talking about.

Okabe often refers to himself as, "Hououin Kyouma" (鳳凰院凶真).

However, Mayuri and Daru just call him "Okarin" (オカリン), abbreviated after his name.

The phrase he uses to end conversations, particularly with himself, is "El Psy Kongroo" (エル・プサイ・コングルゥ).

(Source: naomi.thewafflehouse.net)