Leonardo Caldas, also known as Léo Caldas, is a Brazilian voice actor and dubbing director based in São Paulo. He is recognized for his work in the Portuguese dubbing of numerous anime series, providing voices for a wide array of characters.

His filmography includes a variety of significant roles in popular anime. He voices Spinner, also known as Shūichi Iguchi, in the long-running series My Hero Academia. In the sports anime Captain Tsubasa, he is the voice of the defender Hiroshi Jito. For the historical epic Vinland Saga, Caldas provided the voice for the character Torgrimm in the Netflix version of the dubbing.

Caldas's work extends to other notable series. He plays Akatsuki Shinonome in Rumble Garanndoll and Daisuke Seki in Stand My Heroes: Piece of Truth. In the comedy The Way of the Househusband, he voices the character Torajiro. He is also the voice of Johan Valdec in The Saint's Magic Power is Omnipotent.

Beyond the roles listed, his career includes parts in Assassination Classroom as Tadaomi Karasuma, Tamura in Back Street Girls: Gokudolls, 777 in The World Ends with You: The Animation, and voices in long-running series such as One Piece and Demon Slayer. In addition to his work on anime, Caldas has contributed to live-action series and Asian dramas, including a role in the Korean drama Descendants of the Sun.