Junji Chiba was a Japanese voice actor born on January 26, 1926, in Tokyo, Japan. He was active in the industry from the 1960s until his passing on February 17, 1988. At the time of his death, he was affiliated with Ezaki Productions, which is now known as Mausu Promotion.

Chiba was known for specializing in voicing elderly male characters, a niche he shared with contemporaries such as Takeshi Aono, Koichi Chiba, Tamio Oki, and Kohei Miyauchi. His career encompassed a wide range of roles in television anime, theatrical films, and Japanese dubs of foreign productions.

His television anime roles were numerous and spanned several decades. Some of his notable appearances include the Hige Oyaji character in the 1965 series Kimba the White Lion. He also voiced characters in the first two Lupin III anime series, appearing in the first series as an old man and in the second series in multiple roles such as Jinenbo Fūtarō and Genpaku. In 1976, he voiced Geppetto in The Adventures of Pinocchio, known in Japanese as Pikorino no Boken. He had a role in Future Boy Conan in 1978 as Sun. One of his later prominent roles was as Ryuken, the master of Kenshiro, in the first 1984 television series of Fist of the North Star. He also appeared in productions such as Science Ninja Team Gatchaman, UFO Warrior Dai Apolon, and Zenderman.

In addition to television, Chiba contributed his voice to several animated films. His filmography includes a role as the First Cellist in Gauche the Cellist (1982) and reprising the role of Ryuken in the 1986 theatrical version of Fist of the North Star. He also voiced Grumpy in a Japanese dub of Snow White and the Seven Dwarfs and had a role in the film Makoto-chan.

Beyond original anime, Chiba was active in voice-over work for foreign films and television series. He provided the Japanese voice for numerous actors in classic Westerns and dramas. Notable examples include voicing Chief Dan George in The Missouri Breaks for its TBS broadcast, Henry Hull in Lifeboat, and the sushi bar owner in Blade Runner for its TBS edition. He also dubbed the role of Jed Clampett in The Beverly Hillbillies.

Throughout his career, Chiba collaborated frequently with other prominent voice actors of his era. He shared multiple projects with actors such as Ichiro Nagai, Koji Yada, Yoshito Yasuhara, and Hidekatsu Shibata. His work was part of the foundational era of Japanese voice acting, contributing to many classic series that helped define the medium. Following his death in 1988, several of his long-running roles were taken over by other voice actors.