Tonari no Sakata is a Japanese voice actor and a member of the four-person male idol unit Urashimasakatasen, alongside Uratanuki, Shima, and Senra. The group is credited as the original creator of the television anime series Days of Urashimasakatasen, which premiered in October 2019. In this series, which depicts the daily school life of the unit members, Tonari no Sakata voices the character Sakata, a fictionalized version of himself. The character is associated with symbols such as the cherry blossom and a dog, reflecting his persona within the group.

Beyond this self-representative role, Tonari no Sakata has worked as a freelance voice actor. His known voice roles include portraying the characters Ayato and Chisato in the otome game Situation Boyfriend. He also voiced the character Kazuki Haiga in the Dolce franchise. In these roles, he performs as a 14-year-old aspiring idol who supports his childhood friend, a character with hobbies that include composing poetry, cooking, and kitchen gardening.

The character Sakata, as depicted in Days of Urashimasakatasen and related media, is described as a high school student and a member of the kendo club. The character exhibits specific traits such as occasional use of Kansai dialect and a fondness for fruits, particularly melons, and seafood, while having a low tolerance for spicy food. This character also has a noted medical history, which includes allergies to cats and recovery from a vocal cord polyp in 2017 that temporarily affected his voice, a detail attributed to the character he voices and performs as.