He is the husband of Saki's sister and the brother-in-law of Saki. Saki apparently may have had feelings for him at some point.  His surname is probably Sangetsu and he is a baker.  (Source: Eden of the East Wikia)

On November 22, 2010 ten missiles strike Japan. However, this unprecedented terrorist act, later to be known as "Careless Monday," does not result in any apparent victims, and is soon forgotten by almost everyone. Then, 3 months later... Saki Morimi is a young woman currently in the United States of America on her graduation trip. But just when she is in front of the White House, Washington DC, she gets into trouble, and only the unexpected intervention of one of her fellow countrymen saves her. However, this man, who introduces himself as Akira Takizawa, is a complete mystery. He appears to have lost his memory, is stark naked, except for the gun he holds in one hand, and the mobile phone he's holding in the other. A phone that is charged with 8,200,000,000 yen in digital cash.<br><br>
(Source: Production I.G website)

Troy Baker is an American actor and voice actor who works with anime films, television series, as well as video games. 

Before pursuing acting, Baker was the lead singer and rhythm guitarist for the indie-rock band Tripp Fontaine, which released the radio single "Burning Out" from their debut album "Random Thoughts On A Paper Napkin" in 2003.  

He is best known for his video game roles, including Joel Miller in The Last of Us franchise, Booker DeWitt in BioShock Infinite. His voice can also be heard in video game titles including Tales of Vesperia, Brothers in Arms, Red Faction: Guerrilla, Call of Duty: Modern Warfare 2, Final Fantasy XIII, Transformers: War for Cybertron, Call of Duty: Black Ops, Catherine, Batman: Arkham City, and Saints Row: The Third.

Animation lovers will recognize him in shows such as Cartoon Network's Generator Rex and Disney XD's Avengers: Earth's Mightiest Heroes, as well as several popular anime series such as Naruto: Shippuden and Trinity Blood.

Ryosuke Morimi