Diego Marques is a Brazilian voice actor and dubbing director, born in São Paulo on June 18, 1987. He began his career in voice acting as a child and has since become a prominent figure in Brazilian dubbing, also serving as a dubbing director at TV Group Digital.

Marques has lent his voice to a wide array of characters across animation, live-action, and anime. In animation, he is known for voicing Haida, the hyena coworker with a long-standing crush on the protagonist, in all five seasons of the Netflix series Aggretsuko. His other notable anime roles include Atsushi Nakajima in Bungo Stray Dogs, Kei Nagai in Ajin: Demi-Human, Ikki Tenryou in Medabots, and Shikadai Nara in Boruto: Naruto Next Generations. He has also voiced characters in long-running franchises such as Trunks in various Dragon Ball Z films and Zushi in Hunter x Hunter.

Beyond anime, his work spans international co-productions and live-action dubbing. He voiced Jamal in the sci-fi series OBSOLETE and Thomas in the Studio Ghibli film Earwig and the Witch. His live-action dubbing credits include roles for actors such as Nick Jonas, Joe Jonas, and Spencer Boldman.

In addition to his on-screen roles, Marques has contributed as a dubbing director. He served as the ADR director for the fourth and fifth seasons of Aggretsuko and for the series Knights of Sidonia: Battle for Planet Nine. His extensive filmography demonstrates a sustained and versatile career in the Brazilian voice acting industry.