Lee Mija is a South Korean voice actress. She has been active in the industry since at least the 1960s. Her work primarily involves providing Korean-language dubbing for foreign productions, including animation.

One of her notable roles is providing the Korean voice for Asuka Tsukishiro in the anime series Matchless Raijin-Oh, specifically for the MBC broadcast version. She is also the Korean voice actor for the character Pazu in the Studio Ghibli film Castle in the Sky.

Lee Mija has a long-standing association with the popular South Korean animated children's series Pororo the Little Penguin. She voices the character Crong, a small dinosaur, in the series and its various theatrical films. She has also provided the English voice for the same character in some versions of the show.

The information available does not confirm her involvement in the roles of Ricky/Hayato in Time Quest!, Jean in Yadamon, Fuyuki Hinata in Keroro Gunsō, or Souta Suzukaze in Fairy Musketeers as mentioned in the query. For these specific titles and roles, no info.