Cast of Thermae Romae Novae

Kenjiro Tsuda voices Lucius, the main character of Thermae Romae Novae. Lucius is a Roman bath architect who gets transported to modern-day Japan and uses his knowledge to revolutionize the bath industry.

Chikahiro Kobayashi provides the voice for Marcus in Thermae Romae Novae. Marcus is a friend and colleague of Lucius who also gets transported to Japan. Together, they navigate the cultural differences and introduce Roman bathing culture in a modern context.

Satoshi Hino voices Regulus in Thermae Romae Novae. Regulus is another Roman bath architect and a rival of Lucius. He often finds himself at odds with Lucius but eventually learns to appreciate the Japanese bath traditions.

Tsutomu Isobe provides the voice for Emperor Hadrian in Thermae Romae Novae. Hadrian is the emperor of ancient Rome and plays a significant role in Lucius' adventures as he explores the baths of Japan.

Asami Seto gives voice to Mari Yamaguchi in Thermae Romae Novae. Mari is a Japanese woman who becomes fascinated with Lucius and his bathing ideas. She assists Lucius in his journey to merge Roman and Japanese bathing cultures.

Shuichi Ikeda voices Utagawa Kuniyoshi in Thermae Romae Novae. Utagawa Kuniyoshi is a famous ukiyo-e artist from the Edo period who appears in the show as an important historical figure. His interactions with Lucius and Marcus add depth to the storyline.

Takahiro Sakurai gives voice to Yoshida, a Japanese bathhouse owner, in Thermae Romae Novae. Yoshida is intrigued by Lucius' bath designs and invites him to experience traditional Japanese bathing practices.

Yoshimasa Hosoya plays Ceionius in Thermae Romae Novae. Ceionius is a Roman senator who supports Lucius' endeavors and helps bridge the gap between ancient Rome and Japan.