Lenne Hardt is an American voice actress and ring announcer based in Japan, known for her extensive work in English-language dubs of Japanese anime and video games, as well as her legendary career announcing for mixed martial arts promotions. She is affiliated with the talent agency Aoni Production.

Hardt's path to voice acting began with a strong foundation in the Japanese language and arts. After spending a year in Japan as a teenager, she returned to the United States to study at New York University before permanently relocating to Japan in 1988. Her career in entertainment started with work as a disc jockey and announcer for television and radio, which naturally extended into voice acting for English dubs and theater performances. Her fluency in both English and Japanese led to her iconic role in 2000 as the English-language ring announcer for the PRIDE Fighting Championships, a position that would define her public persona and lead to numerous announcing roles in fighting games and anime.

As a voice actress, Hardt has contributed to a wide array of anime and video game projects. In anime, one of her notable roles is Margherita in the educational anime series Little Charo, which follows the adventures of a dog named Charo. She also provided the voice for the character in the related Nintendo DS game, Little Charo Travels in English!. Her vocal talents extended to the series' soundtrack, where she performed the song "New York, New York" as Margherita for the Little Charo Song Book CD. Another of her anime roles includes providing the equipment voice for the live-action tokusatsu drama Kikai Sentai Zenkaiger.

While her anime roles are notable, Hardt's voice acting career is particularly prolific in the realm of video games, where her distinctive voice has become familiar to players worldwide. She is frequently cast in fighting games, often bringing her energetic announcing style to the role. A recurring collaboration is with the Tekken franchise, where she has voiced the character Anna Williams, starting with Tekken 5 and continuing in subsequent installments. She has also voiced Sarah Bryant in the Virtua Fighter series. Other prominent video game roles include Axl in Mega Man X7, Musashi in Musashi: Samurai Legend, and Tao Lin Xia and Guixiang Lee in the Shenmue games. Her reputation as a ring announcer has led to her being cast as an announcer character in numerous other titles, such as the Kinnikuman Muscle Grand Prix series and Yakuza 0.

Throughout her career, Hardt has achieved recognition for her unique and powerful vocal style. Her energetic, often operatic delivery as a ring announcer, which includes high-pitched screeches and long trills, earned her the nickname "Crazy PRIDE Lady" from fans. This distinctive approach has become her signature, and she has noted that her technique draws inspiration from classical Japanese performing arts like Kabuki and Rakugo. Her achievements include becoming the official announcer for the Japanese idol group Momoiro Clover Z and being selected to announce for major international events such as the 2022 ADCC World Championship. Her decades-long career has made her a beloved and respected figure in both the fighting game community and among fans of Japanese pop culture.