Karla Vanesa Vega Espinosa is a Mexican voice actress and dubbing director born on October 22, 1984, in Mexico City. She began her career in dubbing in August 2009.

Vega has lent her voice to a variety of characters in anime. One of her notable roles is Tsubone, the antagonistic komodo dragon office worker in the Latin American Spanish dub of the Netflix series Aggretsuko. In the context of that series, she was noted as one of the few professional voice actors in the cast, alongside the voices of Retsuko and Komiya. She also voiced the character Camila in the anime series Holy Knight.

Her other anime voice work includes the role of Kyouka Kagami in SWORDGAI The Animation, Miki Komori in Ghost Hound, Nguyen in Knights of the Zodiac Omega, and Kanae in Children of the Whales. In the Pokémon franchise, Vega has performed several roles. She is known for voicing Sophocles, one of the main protagonists in the Sun & Moon series, a role she reprised for his appearance in Pokémon Journeys. She also provided the voice for the Smart Rotom belonging to Team Rocket in the twenty-third season and voiced the character Plumeria in the Sun & Moon series. Beyond anime, her work includes voicing characters in animated series and films such as Lucy in Speed Racer: The Next Generation, Miss Tibbins in The Adventures of Blinky Bill, and the Princess of Porcelain in Legends of Oz: Dorothy's Return.