Denise Iozzi Sperandelli is a Brazilian actress and voice actor, born in São Paulo on March 16, 1986. She is formally trained in theater, having graduated from the Federal University of Minas Gerais (UFMG), and she also studied dubbing at the studio DuBrasil.

Her body of work as a voice actor spans various media, including anime, western animation, live-action series, films, and video games. In anime, she is known for providing the Brazilian Portuguese voice for Anna Schneider in the series takt op. Destiny. Her other notable roles in anime include Elise in By the Grace of the Gods, Nao Shimura in My Hero Academia, Futa in Yashahime: Princess Half-Demon, Miyako Goshiki in A Neighbor from Another World, and Reina Brown in My Unique Skill Makes Me OP Even at Level 1.

Beyond anime, Sperandelli has contributed to the dubbing of several prominent western animations and live-action projects. She is the voice of Lollie in the Brazilian Portuguese version of the children's series Puppy Dog Pals. Her work in animation also includes the role of Melissa Gold / Screaming Mimi in Marvel Rising. In video games, she has voiced significant characters such as Fragile in Death Stranding and Fia Zborowska in Deathloop. Her live-action dubbing credits include Sadie in The Vigilante and Dr. Ellen Taylor in the film Primal. In 2024, she narrated the audiobook version of Power Skills: As habilidades-chave para destravar seu potencial by Dafna Blaschkauer.