Tatsuya Tomizawa, also credited under the name 冨沢竜也, is a Japanese voice actor born on February 23, 1988, in Tokyo, Japan. He has been active in the industry, with his work spanning anime, narration, drama CDs, and video game voice-overs. In the world of anime, Tomizawa is known for a range of supporting roles. He is the voice behind the character Dytus, the loyal servant and confidant to Prince Azure in the fantasy romance series Nina the Starry Bride. Beyond this leading supporting part, his anime filmography includes minor roles in several other productions. He voiced a samurai in the television series Bakumatsu, provided the voice of a tomato delivery person in the film City Hunter: Shinjuku Private Eyes, and played a guide in Reikenzan: Hoshikuzu-tachi no Utage. Tomizawa also contributed to the Netflix original series Ultraman, where he voiced various background characters such as a friend, a student, and a member of a science special search party.

In addition to his television and film work, Tomizawa has lent his voice to audio dramas. In 2019, he starred as the character Harumi Shion in the drama CD Love Trianglar: I Love You The Most! Volume 1, a project that utilized a dummy head microphone to create an immersive listening experience. His voice acting extends to Japanese dubbing of international animation, performing as the character Cascão in the Brazilian cartoon Monica & Friends. In the video game medium, he is known for voicing the Magician in Magical Drop VI. One notable achievement in his career was his expressed personal satisfaction at being cast as Dytus, a role in a manga series he has long loved.