Karin Ogino is a Japanese actress, voice actress, singer, and model, born on October 12, 1995, in Kai, Yamanashi Prefecture. She is represented by the talent agency Tambourine Artists. Ogino began her entertainment career in 2008 after winning a grand prix in a model audition for the fashion magazine Pichilemon. Her career has spanned multiple facets of the Japanese entertainment industry, including live-action television, film, and stage performances, in addition to her voice acting work.

Ogino's most prominent and defining voice acting role is Aoi Takahashi in the anime series Tesagure! Bukatsu-mono. She first voiced the character in the original 2013 series and continued the role in its sequels, including Tesagure! Bukatsu-mono Encore and Tesagure! Bukatsumono Spin-off Purupurun Sharumu to Asobou. This role was a significant part of her career and led to her involvement in related projects, such as providing the voice for the same character in the video game Miracle Girls Festival and performing character songs for the franchise. Another notable voice role was Nyarin in the 2018 anime Himote House. Her other anime credits include a role in Copinks! Stories and early work in the children's series Shimajirō Hesoka.

In addition to her focused voice acting work, Ogino has had a prolific career as a live-action actress. She is widely recognized for her dual role as Yumeria Moegi/Akiba Yellow in the 2012 tokusatsu parody series Unofficial Sentai Akibaranger, a part she reprised in a different form as Yuko Yokoyama/Akiba Yellow in its second season. Her filmography includes roles in feature films such as Kamen Rider OOO Wonderful: The Shogun and the 21 Core Medals and the lead in Cellular Girlfriend +. Ogino has also been active in stage productions, with notable performances in adaptations of Tiger & Bunny, Gyakuten Saiban (Ace Attorney), K, and Vampire Knight. She was also the leader of the idol girl group Yumemiru Adolescence. Through her work on Tesagure! Bukatsu-mono, she developed recurring professional relationships with fellow cast members such as Nishi Asuka, Akesaka Satomi, and Ayaka Ōhashi, frequently collaborating with them on music and events related to the series.