Luis Daniel Ramírez is a Mexican voice actor and director born in Mexico City on November 29, 1979. He began his career in dubbing at the age of six in January 1986. Over a prolific career, he has become recognized for voicing a wide array of characters in anime, animated series, and live-action films for the Latin American Spanish market.

In the realm of anime, Ramírez is known for his extensive work in the Lupin III franchise, where he provided the voice for the persistent Inspector Koichi Zenigata in numerous films and specials. His credits as Zenigata include Lupin III: Dragon of Doom, Lupin III: Crisis in Tokyo, Lupin III: Farewell to Nostradamus, Lupin III: The Pursuit of Harimao's Treasure, Lupin the 3rd: From Siberia with Love, Lupin the 3rd: Bye Bye, Lady Liberty, and Lupin III: Voyage to Danger. He also voiced roles in other notable anime series, such as Hayato Shindou in Time Quest!, Sanzou in Asobotto Senki Goku, Susumu Kurose in A.I.C.O. -Incarnation-, Góliver in Nouvelle Fantasia Gulliverboy, Heydo in Pilot Candidate, Tsutomu Senkawa in Birdy the Mighty, and Shuu Koibuchi in Princess Jellyfish. He was particularly active in the Saint Seiya franchise, taking on the roles of Aquarius Camus and Hyoga of Cygnus in The Hades Chapter - Sanctuary, as well as voicing Shion of Aries in The Lost Canvas.

Beyond the titles listed, Ramírez's anime filmography is extensive. He voiced Touya Kinomoto in Cardcaptor Sakura, Keiichi Morisato in Oh My Goddess!, Horo Horo in Shaman King, and Angemon and Davis Motomiya in the Digimon series. He also contributed to the Dragon Ball franchise, providing voices for Krillin during the Buu Saga, Yajirobe, Vegeta Jr., and Uub.

Ramírez's work extended into video games, where he founded a localization company called El Loft, which later became Lola MX, specializing in adapting video games for the Latin American market. He was also a director of dubbing for Disney Character Voices International, overseeing projects such as the films Bolt and The Princess and the Frog. His later voice work included being the first Spanish voice for YouTuber MrBeast (Jimmy Donaldson) from 2021 to 2022. Despite a long and varied career, his workload diminished significantly in late 2019 following professional controversies within the dubbing industry.