Atsushi Saito is a graphic designer originally employed at Sega AM3 in January 1994, before transferring to Sega of America three years later. The following October he was named the lead animator at Sonic Team, designing event scenes and player character motions. He remained with the company until January 2008.
Following his departure from Sega he joined Namco Bandai Games as its senior animator, where he remained until November 2010. Other places of employment include Polygon Pictures and Sola Digital Arts.
As of July 2012 he holds the title of Lead Animator at OLM Digital Ink, headquartered in San Francisco.