Graduated from Kansai Commercial School. Joined Kokumin Theater (1926) and studied under Shojiro Sawada, originator of Shinkokugeki (new national play).
Ryutaro Tatsumi became popular as a tateshi (killer) which was the favorite role of his master, Sawada. His favorite roles are Kunisada-Chuji (boss of a gang of gamblers) and Miyamoto-Musashi (expert swordsman). He is a member of Shinkokugeki Theater Company.