Miho Yoshida is a Japanese voice actress born on March 15, 1963, in Kyoto, Japan. She is affiliated with the talent agency Production Baobab. Her career began in the 1980s, and she has built a extensive body of work across numerous anime television series, original video animations (OVAs), and video games.

Yoshida's voice acting career is characterized by its longevity and versatility, encompassing a wide range of characters. In her early career, she took on roles in classic series such as Sayaka Minazuki in the 1984 television anime Glass Mask. Throughout the 1980s and 1990s, she was active in various OVA productions, a common medium for anime at the time. Examples of her work from this period include roles in series like Dream Hunter Rem, Mad Bull 34, and Grey: Digital Target.

Many of the roles provided in the query are accurately reflected in her filmography, particularly in OVAs and adult-oriented animation from the 1990s. These credits include the role of Yaku in the La Blue Girl series, Queen Neina in Dragon Knight, Midori Anzai in Angel of Darkness, Yayoi Ogawa in F3, Sakura Akiyama in The Blackmail II: The Animation, and Hisayo Sumibishi in Aoki Honō. She has also contributed her voice to video games, such as the role of Miho Nomoto in The Mystery of Nonomura Hospital.

Beyond these credits, Yoshida has maintained a consistent presence in mainstream anime across several decades. Her television credits include appearances in long-running and popular series such as Crayon Shin-chan, Detective Conan, and Chihayafuru. In the 2022 anime series Deaimon: Recipe for Happiness, she provided the voice for the character Shizuyo Irino, a role which matches the query's mention of "Masayo Irino" but with a corrected name. She also voiced a character in the 2022 series My Stepmom's Daughter Is My Ex. Her work in the 2017 animated film Case Closed: The Crimson Love Letter, where she voiced Satsuki Achiwa, represents one of her notable later-career credits in a major theatrical release.

A notable aspect of Yoshida's career is her association with the Super Robot Wars video game series. She is widely recognized for taking over the voicing of several characters originally portrayed by retiring voice actress Riyoko Yoshida. Her portrayals of characters like Michiru Saotome, Maria Grace Fleed, and Miwa Uzuki in this long-running franchise are a significant part of her legacy.

In addition to her anime and game work, Yoshida has also performed voice-over work for dubbing foreign films and television dramas, bringing international productions to Japanese audiences. Yoshida is married to fellow voice actor and stage actor Hiroshi Ienaka. She is known to hold a level one certification in the Japanese Kanji Aptitude Test and enjoys practicing the Urasenke style of tea ceremony.