Sota Arai is a Japanese voice actor known for his extensive work in anime, particularly for providing the voices of multiple characters in the long-running series Aggretsuko. His career includes a variety of roles in major anime franchises, demonstrating his range in portraying both comedic and dramatic characters.

Arai's most prominent and frequent roles are within the Aggretsuko franchise. He is the voice of the boorish but skilled accounting department director, Ton, a role he has played since the original 2016 television shorts. He reprised this role for the Netflix original net animation series and the holiday special Aggretsuko: We Wish You a Metal Christmas. His involvement with the series extends to several other characters, including Ton's meerkat subordinate Komiya, as well as the characters Zukkun and Manumaru in various seasons of the show.

Beyond Aggretsuko, Arai has built a substantial career with roles in many popular series. He has had recurring roles in long-running franchises such as One Piece, where he voices Komachiyo, and Dragon Ball Super, as Chief Moginaian. He also portrayed the hero Golden Ball in both seasons of One-Punch Man and was the voice of Sante in the Tokyo Ghoul series. In the sports anime Blue Lock and its second season, Blue Lock vs. U-20 Japan, he voices the character Glorent Dabadie. His other credits include roles in World Trigger, Sword Art Online II, and Majin Bone, among many others.

Throughout his career, Arai has demonstrated a consistent presence in the anime industry, often taking on supporting roles that contribute to the depth of their respective series. His work on Aggretsuko, in particular, highlights his ability to voice distinct personalities within a single production, from the loud and demanding Ton to the sycophantic Komiya. This body of work, accumulated over more than a decade, establishes him as a familiar and versatile talent in anime voice acting.