Ryosuke Sakamaki is a Japanese voice actor born on September 12 in Saitama Prefecture, Japan. He began his career in the voice acting industry in 2003. Over the years, his agency affiliations have included Doa Production, Vi-Vo, Doujinsha, and Al-Share.

Sakamaki has built a career with a variety of roles in anime, video games, and drama CDs. One of his notable early leading roles was as Lief in the 2007 anime series Deltora Quest. In 2008, he voiced the character Kakeru Nohara, also known by his nickname Striker, in the anime Battle Spirits: Shōnen Toppa Bashin. His other anime credits include roles in long-running and popular series such as Space Brothers as Rolly Cuomo, Daily Mama, the Reborn! franchise, Tokyo Magnitude 8.0, and Penguindrum.

In addition to his work in anime, Sakamaki has contributed to the Japanese dubs of foreign television dramas and has voiced characters in video games. His game credits include Levin Brenton in Wild Arms XF and a role in Wand of Fortune. He has also been active in the realm of drama CDs, particularly in the Boys Love genre, with appearances in series such as王朝夏曙羅曼史 and 龍と竜.