Rintarou Okabe is the main protagonist of the visual novel Steins;Gate and the anime of the same name. He is a self-proclaimed mad scientist who calls himself Hoouin Kyouma which he claims is his true name. He is the founder of the Future Gadget Lab where he and his lab members invents various gadgets. His lab group invents the Phonewave (name subject to change) which enables him to send e-mails to the past. This would later put him against the shadowy organization named SERN who is also working on a time machine on its own to make their own version of a utopia.
He is voiced by Mamoru Miyano in the Japanese version and J. Michael Tatum in the English version.