Eduardo Fonseca, born Eduardo Antolín Fonseca Pérez on September 2, 1958, is a highly regarded Mexican voice actor with a career spanning over three decades in the dubbing industry. He is recognized for his versatile vocal work in animated series, films, and live-action dubbing for Latin American Spanish audiences.

While Fonseca has a prolific career in dubbing for film and television, his contributions to anime are significant. He is particularly known for his portrayal of Hades in the DVD version of Saint Seiya: The Hades Chapter. His extensive anime filmography includes a wide array of characters across numerous popular series and films. As the user noted, he voiced Gorthion in Bakugan Battle Planet and Shinko's grandfather in Mai Mai Miracle. Other notable anime roles include Genryūsai Shigekuni-Yamamoto in Bleach: Thousand-Year Blood War, Wapol in One Piece, Enma in Naruto, Shiren Tium in Black Clover, and Professor Viper in Yu-Gi-Oh! GX. His work also spans titles such as Dragon Ball Z: Resurrection 'F', Kengan Ashura, Eyeshield 21, and Digimon Adventure.

In addition to his anime work, Fonseca has built an impressive career dubbing live-action films. He is widely recognized as the official Spanish voice for actors Eddie Murphy and Lance Reddick for many years. He has also frequently dubbed the voices of Arnold Schwarzenegger, Delroy Lindo, and Keith David.

Throughout his long career, Fonseca has frequently collaborated with a large circle of other voice actors. According to dubbing database records, he has worked most often with actress Liliana Barba, with whom he has shared credits in eight different projects. He has also frequently worked alongside Juan Carlos Tinoco, Luis Daniel Ramirez, and several of his own family members who are also in the dubbing industry, including his nephews Víctor Ugarte and Xóchitl Ugarte.