Isoyama Sayaka (磯山さやか)Nickname: Isocchi (いそっち)
Birthdate: October 23th, 1983
Birthplace: Ibaraki Hokota
Blood type: A
Bust: 91cm (F cup)
Shoe size: 24cm
Hobbies: Karaoke, watching high school baseball games, learning about idols
Abilities: Baton, trumpet, rollerblading, sign language, spinning plates
Favorite celebrities: Matsuda Seiko, Fujiwara Norika
Favorite TV show: Gakkou e Ikou
Favorite movie: Shakespeare in Love
Favorite authors: Aida Mitsuwo, Fujiwara Norika (Fujiwara Shugi)
Favorite food: Anything with vinegar
Talent Agency: HORI AGENCY
Sayakais an avid fan of baseball. When she was in high school she was the manager of the baseball team and even back then was highly informed about the sport.
She has scored in the third level of the Society for Testing English Proficiency (1 being highest out of 5).
Appeared in the Tokusatsu series Chouseishin Gransazer as Saotome Ran / Sazer Visuel.